Tag Archives: copper

Chile seeks to sanction those responsible for sinkhole near copper mine

The mysterious hole of 36.5 meters (120 feet) in diameter that emerged in late July has provoked the mobilization of local authorities and led the mining regulator Sernageomin to suspend operations of a nearby mine owned by Canada’s Lundin in the northern district of Candelaria.

“We are going to go all the way with consequences, to sanction, not just fine,” mining minister Marcela Hernando said in a press release, adding that fines tend to be insignificant and the ruling must be “exemplary” to mining companies.

Chilean authorities have not provided details of the investigation into causes of the sinkhole.

Local and foreign media showed various aerial images of the huge hole in a field near the Lundin Mining operation, about 665 kilometers (413 miles) north of the Chilean capital. Initially, the hole, near the town of Tierra Amarilla, measured about 25 meters (82 feet) across, with water visible at the bottom.

The Canadian firm owns 80% of the property, while the remaining 20% is in the hands of Japan’s Sumitomo Metal Mining Co Ltd and Sumitomo Corp.

The minister added that although the country’s mining regulator had carried out an inspection in the area in July, it was not able to detect the “over-exploitation.”

“That also makes us think that we have to reformulate what our inspection processes are,” she said.

In a statement, Lundin said the over-exploitation referred to by the minister had been duly reported.

“We want to be emphatic that, to date, this hypothesis as reported by Sernageomin has not been determined as the direct cause of the sinkhole. The hydrogeological and mining studies will provide the answers we are looking for today,” Lundin said.

“Different events that could have caused the sinkhole are being investigated, including the abnormal rainfall recorded during the month of July, which is relevant,” added Lundin.

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Chile to seek ‘consequences’ for sinkhole near copper mine

SANTIAGO, Aug 8 – Chile will seek to apply harsh sanctions to those responsible for a huge sinkhole near a copper mine in the country’s north, the mining minister said on Monday.

The mysterious hole of 36.5 meters in diameter that emerged in late July has provoked the mobilization of local authorities and led the mining regulator to suspend operations of a nearby mine owned by Canada’s Lundin (LUN.TO) in the northern district of Candelaria.

“We are going to go all the way with consequences, to sanction, not just fine,” Mining Minister Marcela Hernando said in a press release, adding that fines tend to be insignificant and the ruling must be “exemplary” to mining companies.

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Chilean authorities have not provided details of the investigation into causes of the sinkhole.

Local and foreign media showed various aerial images of the huge hole in a field near the Lundin Mining operation, about 665 kilometers north of the Chilean capital. Initially, the hole, near the town of Tierra Amarilla, measured about 25 meters (82 feet) across, with water visible at the bottom. read more

The Canadian firm owns 80% of the property, while the remaining 20% is in the hands of Japan’s Sumitomo Metal Mining Co Ltd (5713.T) and Sumitomo Corp (8053.T).

The minister added that although the country’s mining regulator had carried out an inspection in the area in July, it was not able to detect this “overexploitation.”

“That also makes us think that we have to reformulate what our inspection processes are,” she said.

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Reporting by Fabian Andres Cambero; Writing by Carolina Pulice;
Editing by Leslie Adler

Our Standards: The Thomson Reuters Trust Principles.

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An ‘Impossible’ Quasicrystal Was Created in The World’s First Nuclear Bomb Test

At 5:29 am on the morning of 16 July 1945, in the state of New Mexico, a dreadful slice of history was made.

The dawn calm was torn asunder as the United States Army detonated a plutonium implosion device known as the Gadget – the world’s very first test of a nuclear bomb, known as the Trinity test. This moment would change warfare forever.

 

The energy release, equivalent to 21 kilotons of TNT, vaporized the 30-meter test tower (98 ft) and miles of copper wires connecting it to recording equipment. The resulting fireball fused the tower and copper with the asphalt and desert sand below into green glass – a new mineral called trinitite.

Decades later, scientists discovered a secret hidden in a piece of that trinitite – a rare form of matter known as a quasicrystal, once thought to be impossible.

“Quasicrystals are formed in extreme environments that rarely exist on Earth,” geophysicist Terry Wallace of Los Alamos National Laboratory explained last year.

“They require a traumatic event with extreme shock, temperature, and pressure. We don’t typically see that, except in something as dramatic as a nuclear explosion.”

Most crystals, from the humble table salt to the toughest diamonds, obey the same rule: their atoms are arranged in a lattice structure that repeats in three-dimensional space. Quasicrystals break this rule – the pattern in which their atoms are arranged does not repeat.

When the concept first emerged in the scientific world in 1984, this was thought to be impossible: crystals were either ordered or disordered, with no in-between. Then they were actually found, both created in laboratory settings and in the wild – deep inside meteorites, forged by thermodynamic shock from events like a hypervelocity impact.

 

Knowing that extreme conditions are required to produce quasicrystals, a team of scientists led by geologist Luca Bindi of the University of Florence in Italy decided to take a closer look at trinitite.

But not the green stuff. Although they’re uncommon, we have seen enough quasicrystals to know that they tend to incorporate metals, so the team went looking for a much rarer form of the mineral – red trinitite, given its hue by the vaporized copper wires incorporated therein.

Using techniques such as scanning electron microscopy and X-ray diffraction, they analyzed six small samples of red trinitite. Finally, they got a hit in one of the samples – a tiny, 20-sided grain of silicon, copper, calcium and iron, with a five-fold rotational symmetry impossible in conventional crystals – an “unintended consequence” of warmongering.

“This quasicrystal is magnificent in its complexity – but nobody can yet tell us why it was formed in this way,” Wallace explained in 2021 when the team’s research was published.

“But someday, a scientist or engineer is going to figure that out and the scales will be lifted from our eyes and we will have a thermodynamic explanation for its creation. Then, I hope, we can use that knowledge to better understand nuclear explosions and ultimately lead to a more complete picture of what a nuclear test represents.”

 

This discovery represents the oldest known anthropogenic quasicrystal, and it suggests that there may be other natural pathways for the formation of quasicrystals. For example, the fulgurites of molten sand forged by lightning strikes, and material from meteor impact sites, could both be a source of quasicrystals in the wild.

The research could also help us better understand illicit nuclear tests, with the eventual aim of curbing the proliferation of nuclear armaments, the researchers said. Studying the minerals forged at other nuclear testing sites could uncover more quasicrystals, the thermodynamic properties of which could be a tool for nuclear forensics.

“Understanding other countries’ nuclear weapons requires that we have a clear understanding of their nuclear testing programs,” Wallace said.

“We typically analyze radioactive debris and gases to understand how the weapons were built or what materials they contained, but those signatures decay. A quasicrystal that is formed at the site of a nuclear blast can potentially tell us new types of information – and they’ll exist forever.”

The research has been published in PNAS.

 

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Recession Fears Can’t Curb The Commodity Boom

Earlier this week, Brent crude fell below $100 per barrel for the first time in months. So did West Texas Intermediate. Copper dropped to the lowest in almost two years. It looked like inflation had done its evil deed. A recession was coming, and demand for commodities was about to plunge. And then both oil and copper rebounded. It lasted all of one day, although the price of copper has been fluctuating with the flow of news from China and the prospects of its economy for the rest of the year and the medium term. The latest copper price rebound was, in fact, attributed by some to the possibility that the Chinese government would provide additional stimulus to keep the economy going at a healthy pace.

The rebound in oil, however, was easy to see coming despite the notorious uncertainty of oil markets. And the reason it was easy to see coming was fundamentals. Whatever happens in the speculative market, the fact that the global supply of oil is tight while demand is very much alive and still rising cannot be ignored.

The Financial Times out it quite clearly. In an article from earlier this week addressing the price drop across commodities, the authors said that “Hedge funds have been central to the recent price declines across commodities — selling out of long, or positive, positions in certain commodities and often replacing them with bearish wagers.”

If the big scare of 2020 and 2021 was Covid, this year has two: Russia’s Vladimir Putin and recession. And it is increasingly looking like the latter is overtaking the former in terms of scare value.

Talk about recession is all over the news. Central banks are being targeted with criticism for tightening monetary policy too fast, accelerating recessionary pressure. It was only a matter of time before hedge funds decided to play it safe and start selling out. But, and this is the important bit, this has nothing to do with fundamentals. Fundamentals are why oil was up a day after the dip.

Just how much nothing market price movements have to do with actual demand and supply sometimes was recently highlighted by Wells Fargo. According to the bank’s investment strategy division, the United States, the world’s largest oil consumer, is already in a recession.

“There’s the technical part of the recession, but then there’s the meaningful deterioration in consumption and employment,” Wells Fargo Investment Institute’s senior global market strategist Sameer Samana told Bloomberg this week. “The technical part is a first half story and the brunt of the unemployment and consumption is the second-half,” Samana added.

Inflation, according to Wells Fargo analysts, has proven to be much faster and more broad than initially expected, consumer sentiment has as a result worsened, and businesses are changing their spending plans. But oil demand is still robust as it appears to be across the world, even though some analysts are projecting a decline. According to Citi’s Ed Morse, for example, “Almost everybody has reduced their expectations of demand for the year.” Demand was “simply not growing on an empirical basis to the degree that people had expected,” Morse told Bloomberg TV.

Related: Buffett Buys Another $700 Million In Occidental Shares

Demand might not be growing per expectations—it would have been a wonder at these prices—but supply is not exactly booming, either, which was what probably motivated Saudi Arabia’s latest price hike for Asian buyers to near-record levels. Sellers don’t tend to hike their prices when they expect demand for their goods to decline.

No wonder, then, that Goldman Sachs, unlike Citi, says that oil could yet hit $140 per barrel, even with all the recession fears swirling around the market. “$140 is still our base case because, unlike equity, which are anticipatory assets, commodities need to solve for today’s mismatched supply and demand,” Goldman’s Damien Courvalin told CNBC this week.

These price projections, both from Citi and from Goldman, do not factor in supply disruptions—the same supply disruptions that just a couple of months ago, even a month ago, held markets captive. The disruptions are mainly expected to come from Russian oil exports, but this may have by now been factored into prices as there are still close to six months until the European Union’s oil embargo enters into effect.

Meanwhile, alternatives to this supply for Europe remain few and far between simply because of the size of Russian oil exports to the continent. This would likely continue having a bullish effect on oil prices, whatever the economic trends. Even if a recession dampens the demand for oil, it would take quite a while for real demand destruction of the kind that Citi says could push oil to $65 per barrel. 

Recession fears have solid foundations. There is little doubt about it. Commodity fundamentals, however, not only in oil and gas but in agricultural commodities and metals, have not changed just because hedge funds have suddenly started worrying about a recession. They are still tight. And this is putting a floor under prices that will remain there as long as supply remains tight.

By Irina Slav for Oilprice.com

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Stocks temper their inflation expectations on copper pounding

  • S&P futures up 0.9%, European stocks gain 1.5%
  • MSCI world stocks eyeing 2.5% weekly rise
  • Copper falls more than 7% on week, oil down 2%
  • German 10-year bond yields drop 4 bps

LONDON, June 24 (Reuters) – World stocks headed for their first weekly gain in a month and Wall Street was set to open higher on Friday on hopes that slides in copper and other commodities could put a brake on runaway inflation.

The week has been marked by steep declines for commodities on concern that the world economy is looking shaky and that interest rate hikes will hurt growth – which in turn is prompting traders to cut inflation expectations and pare back some bets on the size of the hikes.

“Inflation will remain elevated and above target but it’s increasingly likely it will start to peak over the next few months,” Andrew Hardy, investment manager at Momentum Global Investment Management, said.

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“Markets could take that reasonably well – there’s potential for recovery later in the year.”

U.S. S&P futures rose 0.9% and MSCI’s world equities index (.MIWD00000PUS) was up 0.5% on the day and 2.5% on the week, setting it up for the first weekly gain since May.

Copper, a bellwether for economic output with its wide range of industrial and construction uses, is heading for its steepest weekly drop since March 2020. It fell in London and Shanghai on Friday and is down more than 7% on the week.

Tin fell by almost 15% on Friday, taking losses this week to a record 25%, as investors fear that slowing economic growth will reduce demand for the metal used in solder for electronics.

Brent crude futures rose more than $1 to $111.28 a barrel on Friday but remain down 2% on the week and 10%

on the month, while benchmark grain prices sank, with Chicago wheat off more than 8% for the week.

Gold was up 0.2% at $1,826.30 per ounce but was heading for a second straight weekly fall.

The price drops have offered some relief to equities, since energy and food have been the drivers of inflation.

European stocks (.STOXX) jumped 1.5%, on course to post small weekly gains. Britain’s FTSE (.FTSE) rose 1.3%, also showing a small uptick on the week.

“For long-term investors, the story has not changed – falling markets offer more attractive valuations on high quality companies with a competitive edge,” Lewis Grant, senior portfolio manager for global equities at Federated Hermes, said.

The Federal Reserve’s commitment to reining in 40-year-high inflation is “unconditional,” U.S. central bank chief Jerome Powell told lawmakers on Thursday, while acknowledging that sharply higher interest rates may push up unemployment. read more

Germany is heading for a gas shortage if Russian gas supplies remain as low as they are now due to the Ukraine conflict, and certain industries would have to be shut down if there is not enough come winter, Economy Minister Robert Habeck told Der Spiegel magazine on Friday. read more

Ukraine said Russian forces had “fully occupied” a town south of the strategically important city of Lysychansk in the eastern Luhansk region as of Friday. read more

Bonds rallied hard on hopes that bets on aggressive rate hikes would have to be curtailed, with German two-year yields sliding 26 basis points on Thursday in their biggest drop since 2008.

The German 10-year yield was down 4 bps on Friday after slumping 29 bps on Thursday, and was heading for its first weekly drop since mid-May.

The benchmark 10-year Treasury yield gained 4 bps to 3.1076%, however, after falling 7 bps on Thursday

Bond funds suffered their largest outflows since April 2020 in the week to Wednesday while equities lost $16.8 billion as markets were stuck in maximum bearish mode, BofA’s weekly analysis of flows showed on Friday.

The U.S. dollar has slipped from last week’s 20-year highs. The euro gained 0.23% to $1.05470 and the U.S. currency was flat at 135.03 yen .

The battered yen has steadied this week and drew a little support on Friday from Japanese inflation topping the Bank of Japan’s 2% target for a second straight month, putting more pressure on its ultra-easy policy stance. read more

MSCI’s broadest index of Asia-Pacific shares outside Japan (.MIAPJ0000PUS) rose 1.1%, helped by short sellers’ bailing out of Alibaba (9988.HK) – which rose nearly 6% – amid hints that China’s technology crackdown is abating.

Japan’s Nikkei (.N225) rose 1.2% for a 2% weekly gain.

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Additional reporting by Brijesh Patel in Bengaluru, Tom Westbrook in Singapore and Sam Byford in Tokyo; editing by Jacqueline Wong, John Stonestreet and Andrew Heavens

Our Standards: The Thomson Reuters Trust Principles.

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We Finally Know How The Nightmarish Bloodworm Grows Fangs Made of Metal

Bloodworms are not for the faint-hearted. These fleshy-looking marine tubes might look harmless from a distance, but don’t be deceived.

Bloodworms (aka ‘bristle worms’ of the genus Glycera) are carnivores that burrow deep into the mud along the seabed, emerging to grasp prey and competitors in their fearsome jaws that are partially composed of copper – and laced with paralyzing venom.

 

Even scientists who study these creatures for a living do not speak highly of bloodworms.

“These are very disagreeable worms in that they are ill-tempered and easily provoked,” says biochemist Herbert Waite from the University of California, Santa Barbara.

“When they encounter another worm, they usually fight using their copper jaws as weapons.”

Close-up of a bloodworm fang. (Herbert Waite/CC BY-SA)

In a new study – led by first author William Wonderly, a graduate student in the Waite Lab – researchers investigated how the bloodworm species Glycera dibranchiata acquires the copper for its jaw, which makes up about 10 percent of the jaw’s overall structure, with the rest consisting of protein and melanin.

It’s previously been noted that the combination of copper and melanin in bloodworm jaws gives the fangs considerable abrasion resistance, which helps the teeth last for the animal’s lifespan of up to around five years.

In the new research, the team dissected bloodworms, analyzed the jaw tissue, and studied cultured cells in vitro, identifying a structural protein that helps these different chemical components come together so successfully.

 

The protein in question – called multi-tasking protein (MTP) – is so effective, it could help point the way to new material-manufacturing processes, the researchers suggest.

“We never expected protein with such a simple composition, that is, mostly glycine and histidine, to perform this many functions and unrelated activities,” says Waite.

“These materials could be road signs for how to make and engineer better consumer materials.”

According to the researchers, MTP performs numerous chemical roles in the end-to-end jaw production process.

These include binding copper (which is harvested from marine sediment), catalyzing melanin formation, and acting as an organizer and fabricator, assembling the resulting blend of protein, copper, and melanin that make up the jaws in the bloodworm’s proboscis.

It’s a formidable trick, the researchers say, and one which would take a lot of work and different equipment to replicate in a laboratory setting, using conventional equipment.

If we can figure out how to replicate it, though – somehow harnessing natural MTP or mimicking similar chemical functionalities – it could be a big step forward in materials science.

“The concerted activities of MTP in the construction of Glycera jaw architecture present a compelling opportunity to rethink the design of processing technologies needed for high-performance and sustainable composite and blended polymeric materials,” the researchers write in their paper.

 

“The combination of chemical simplicity and functional versatility in MTP holds tremendous potential for bio-inspired and natural materials processing.”

It’s amazing to think that all this ingenuity somehow evolved inside the mouth of a bloodworm. Maybe they’re not so bad after all.

“You’ve got a little worm that’s making a jaw that’s as hard and stiff as bronze, and some ceramics as well,” Waite told New Scientist. “And they’re doing this autonomically.”

The findings are reported in Matter.

 

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Kahleah Copper, Sky crush Mercury for 2-1 lead

Kahleah Copper could not be stopped and has the No. 6-seeded Chicago Sky one win away from their first WNBA championship on a clunky night for the No. 5 Phoenix Mercury. 

Copper scored 20 points in an efficient first-half outing to lead the Sky to an 86-50 victory in Game 3 at a sold-out Wintrust Arena in Chicago on Friday. It’s the largest margin of victory in WNBA Finals history at 36 points. 

Game 4 of the best-of-five series is Sunday in Chicago at 3 p.m. ET on ESPN. 

The veteran wing couldn’t be stopped in the first half. She blew by defenders with her quick first step, finishing tough looks at the basket with and-1s, and stepped back for 3 if a defender dropped back on her. Her 20 first-half points were on 6-for-8 shooting, including making 2-of-3 3-pointers, and hitting all six free-throw attempts. She finished with 22 points in 24 minutes. 

Candace Parker had 13 points in 24 minutes with four rebounds and three assists. Courtney Vandersloot had another 10 assists this Finals. It’s her 10th career postseason game with double-digit assists, breaking the tie she held with Sue Bird for the record. 

The Sky put together unmatched streaks in the second quarter and one of the best defensive outings of the year that resulted in a 46-24 lead at the half. They kept that margin at around 20-24 points throughout the game, prompting the sides to pull their starters early in the fourth quarter. 

Phoenix is capable of closing a gap, even when it’s 20 points, but could never get its offense in rhythm nor could it stop the Sky’s scoring. The Mercury are 3-0 this playoffs after a loss and Diana Taurasi is nearly undefeated in elimination games. 

Sky cruise in first half with Kahleah Copper

Chicago Sky guard/forward Kahleah Copper celebrates after hitting a 3-pointer during the first half of Game 3 of the 2021 WNBA Finals against the Phoenix Mercury at Wintrust Arena in Chicago. (Matt Marton/USA TODAY Sports)

Copper nearly eclipsed the output of the entire Mercury offense, keying Chicago to a 46-24 lead at the half. Phoenix’s 24 points was the club’s worse first-half output since 2013, and was half of the first-half offense they’d had throughout their playoff run. 

The 22-point halftime difference tied for the largest in WNBA Finals history, per ESPN Stats and Info. It ties the mark set in 2014 by the same teams, except Phoenix led Chicago, 42-20, in Game 1 of that one. 

The Mercury couldn’t get anything going and didn’t have the rims on their side, either. They missed nine consecutive field goals in the first quarter, much of which were clunkers on the unforgiving baskets. They shot 24.2% (8-for-34) in the first half, a mark that at one point in the second quarter stood at 18.2% (4-for-22). While Copper collected 20 points, no one on the Mercury roster scored more than five. 

The Sky shot better than 50% and used an 8-0 run over the first-quarter break followed by the start of a 10-0 run a minute later to begin to create distance. The bench played good minutes in the period to give the starters rest and even extend the lead. And the team collectively, led by Copper, was able to get to the free-throw line after taking only four shots there in Game 2. 

The Sky were 50% from the floor (30-for-60) and 44.4% from range (8-for-18). In a stark contract from previous games, they took 22 free throws and hit 18. The bench closed it out and Dana Evans, an all-rookie selection out of Louisville, put Sky fans back into deafening roars with three consecutive 3-pointers. 

Sky’s defense shuts down Mercury offense

Defensively the Sky disrupted everything and collapsed on Brittney Griner enough she didn’t have the easy baskets and passes she did on Wednesday. By the time Mercury head coach Sandy Brondello went to the bench at 8:49 of the fourth, Griner had 16 points whereas the rest of the club had 22 combined. 

Skylar Diggins-Smith was second with seven points on 2-for-9 shooting with three assists. Taurasi, who ahead of the game talked about her fine for pushing a ref in Game 2, scored five points on 1-for-10 shooting. She was 1-for-8 from 3-point range with the one make snapping the Sky’s second-quarter 10-0 run. Bria Hartley had five points in the first quarter that the Sky won, 20-11. 

No one on the Mercury other than Griner hit double figures and no one had double-digit rebounds. Brianna Turner had a team-high seven rebounds. Alanna Smith had seven points and seven rebounds off the bench, filling late minutes with the game already done. 

The Mercury shot 25.8% overall (16-for-62), the lowest for a team in WNBA history and third-worst for any playoff team via Across the Timeline, and 25% from 3-point range (5-for-20). Their 50 points only barely avoided the record for lowest-scoring game of the Finals. That was set at 47 by the New York Liberty in 1999, via Across the Timeline. 

Electric atmosphere in Chicago

Wintrust Arena sold out days ago and fans were seeing $1,000 resell tickets for Game 3. It’s the Sky’s first WNBA Finals berth since 2014 and the first for hometown hero Parker. 

The courtside chairs were a who’s-who of stars, including Chance the Rapper taking in another game. Chicago Bears quarterback Justin Fields was also in the house. 

Diamond DeShields’ father, Delino DeShields, was also in the house watching his daughter play in the WNBA for the first time, ESPN’s Holly Rowe reported. The elder DeShields is a coach with the Cincinnati Reds and the two seasons overlap.  

A sellout is expected again for Game 4. 

2021 WNBA Finals schedule

Game 1: Sky 91, Mercury 77

Game 2: Mercury 91, Sky 86 

Game 3: Sky 86, Mercury 50 (Sky lead series, 2-1)

Game 4: Mercury at Sky, 3 p.m. ET Sunday (ESPN)

Game 5: Sky at Mercury, 9 p.m. ET Tuesday (ESPN2) (if necessary)



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Google Pixel 6 Pro: Leaked assembly video confirms impressive battery capacity, copper cooling and non-uniform display bezels

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CenturyLink selling copper network in 20 states instead of installing fiber

Enlarge / A CenturyLink service van parked in Santa Fe, New Mexico, on May 2, 2019.

CenturyLink is selling large portions of its copper network in 20 states to a private-equity firm, letting the telco pull out of rural areas where it doesn’t plan to install fiber-to-the-home technology. CenturyLink agreed to sell the networks for $7.5 billion to Apollo Funds, a private-equity fund operated by Apollo Global Management. Apollo will also take $1.4 billion of debt off CenturyLink’s hands.

Under the deal expected to close in the second half of 2022, Apollo will acquire the CenturyLink ILEC (Incumbent Local Exchange Carrier) business in the 20 states, including “consumer, small business, wholesale, and mostly copper-served enterprise customers and assets,” a press release said yesterday. The networks in the pending sale reach seven million residences and businesses but only have 200,000 fiber-to-the-premises deployments.

CenturyLink said it will keep its ILEC networks in 16 states where it has 2.4 million fiber-to-the-premises deployments among 21 million homes and businesses, saying these networks have “significant overlap” with its “enterprise and fiber-to-the-home build opportunities.”

CenturyLink recently renamed itself “Lumen” but still uses the CenturyLink brand name for residential and small-business customers while using the Lumen brand for enterprise customers.

Homes languish on old copper lines

“On a conference call with investors, Lumen CEO Jeff Storey said that 70 percent of the markets that Lumen will retain in the deal are in urban and suburban areas and that those are the types of markets in which Lumen was most likely to invest in upgrading broadband service to its fiber-based offering known as Quantum,” Telecompetitor wrote.

In the states where CenturyLink networks are being sold, Storey said, “we knew that we were unlikely to prioritize investment in these markets ahead of our other opportunities in enterprise and Quantum fiber.” The networks in the pending sale have 1.3 million CenturyLink Internet subscribers, nearly all on copper-based DSL. About 59,000 of those subscribers are on fiber.

Apollo will also be serving CenturyLink landline phone customers. CenturyLink stopped reporting the number of telephone subscribers it has a few years ago, but the company had 10.3 million phone access lines at the end of 2017. More recently, the “voice and other” category accounted for $518 million of the $1.4 billion revenue in the company’s mass-market category in Q2 2021. Including residential and business segments, the company’s voice services made $1.5 billion of the total $4.9 billion in quarterly revenue. The rest is from consumer broadband, business IP and data services, compute and application services, and fiber infrastructure services.

Where the networks are

The networks being sold operate under the CenturyLink name and are in Alabama, Arkansas, Georgia, Illinois, Indiana, Kansas, Louisiana, Michigan, Mississippi, Missouri, New Jersey, North Carolina, Ohio, Oklahoma, Pennsylvania, South Carolina, Tennessee, Texas, Virginia, and Wisconsin.

CenturyLink/Lumen operates both ILECs and CLECs (Competitive Local Exchange Carriers), the latter of which generally lease lines from incumbents instead of deploying their own. The company will keep the CLECs in all 36 states it operates in and will keep the ILECs in Arizona, Colorado, Florida, Idaho, Iowa, Minnesota, Montana, Nebraska, Nevada, New Mexico, North Dakota, Oregon, South Dakota, Utah, Washington, and Wyoming. CenturyLink/Lumen “will retain 3.4 million broadband subscribers, including 687,000 fiber subscribers,” Telecompetitor wrote.

Apollo promises fiber upgrades

The sale could continue a long-term trend of DSL customers in rural areas being denied fiber upgrades while old copper networks fall into disrepair. CenturyLink won’t be likely to upgrade networks that it’s already agreed to sell but will continue to operate them for another year. How much fiber deployment Apollo will undertake isn’t clear, but the company said the firm’s investment “will help accelerate the upgrade to fiber optic technologies, bringing faster and more reliable Internet service to many rural markets traditionally underserved by broadband providers, while delivering best-in-class customer service.”

CenturyLink/Lumen has focused more heavily on serving large businesses in recent years, a strategy fueled in part by its 2017 acquisition of Level 3.

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Understanding how porphyry-type copper deposits are formed may lead to new resources – study

Their geology makes porphyry deposits rare, while most large near-surface examples have already been found. This means that understanding how and where they form can be of interest for mining companies searching for untapped resources.

This is particularly important given recent predictions that forecast an annual supply deficit that could reach 10 million tonnes by 2030 if no mines get built.

Porphyry copper deposits provide 75% of the world’s copper

According to the researchers, the link that they found is related to how vast quantities of mineralizing fluids are extracted and transported from their source magmas and focussed into the ore-forming environment through ‘crystal mush dykes.’

These dykes “recognition is paramount to the development of more reliable porphyry exploration models and has significance for other ore-forming systems and volcanic processes,” Lawrence Carter, lead author of the study, said in a media statement.

To reach these findings, the experts conducted field studies and micro-textural and geochemical analyses of samples from the archetypal Yerington porphyry district in Nevada, where an ~8-kilometre palaeo-vertical cross-section through a number of porphyry copper deposit systems is exposed.

There, the team was able to identify a wormy interconnected network of quartz within dykes found in rocks that were once beneath the copper deposits. This represents palaeo-porosity in a once permeable magmatic crystal mush of feldspar and quartz. The mush acted as conduits for vast quantities of porphyry-deposit-forming fluids from deep portions of underlying magmas.

The group believes that this breakthrough may provide insights for the discovery of new porphyry copper deposits, which already provide 75% of the world’s copper, and the proposed mechanism key to the formation of other ore deposit types as well as degassing processes in volcanic systems.



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