Mesoproterozoic subduction under the eastern edge of the Kalahari-Grunehogna Craton preceding Rodinia assembly: the Ritscherflya detrital zircon record, Ahlmannryggen (Dronning Maud Land, Antarctica)

first_imgThe ∼2000 m thick clastic and volcaniclastic sedimentary rock pile of the Mesoproterozoic Ritscherflya Supergroup is located near the eastern margin of the Archaean Grunehogna Craton of Dronning Maud Land (East Antarctica). The sedimentary rocks were deposited proximal to an active volcanic arc formed during subduction prior to the assembly of the Rodinia supercontinent. In this study, we investigated internal zonation and U-Pb ages of detrital zircon grains from all formations of the Ahlmannryggen and Jutulstraumen groups of the Ritscherflya Supergroup. Our results show an age distribution with a dominant age peak at ∼ 1130 Ma, close to the sedimentation age of the sedimentary rocks (∼ 1130-1107 Ma), which strongly supports the model of deposition of the sediments in a convergent margin setting. Older peaks in the Ritscherflya sedimentary rock zircon spectrum with ages up to 3445± 7 Ma that were also identified in samples from the Grunehogna Craton basement reflect tectono-magmatic events in the Kalahari Craton. This provides further evidence for the Archaean and Proterozoic connection of the Grunehogna province to the African Kalahari Craton. Parts of the Mesoproterozoic volcanic arc were located on Archaean cratonic basement (∼2800-3450 Ma), whereas other parts tapped late Palaeoproterozoic crust (∼1750 Ma). This is evident from a number of inherited Archaean and Proterozoic cores in zircons with Stenian rims. The Ritscherflya zircon record, therefore, supports models of the eastern margin of the Kalahari-Grunehogna Craton that include inward subduction with an active continental margin prior to collision in Dronning Maud Land. The intercalation of the clastic sedimentary rocks with volcaniclastic materials strongly support the interpretation of a very proximal volcanic source. The sedimentary rocks were affected by regional low-grade metamorphism during the collisional orogeny related to Rodinia assembly and during the Pan-African orogeny related to the assembly of Gondwana. This is evident from metamorphic recrystallisation of zircon at 1086± 4 Ma and from discordancy of many grains pointing to late Neoproterozoic to early Phanerozoic lead loss.last_img read more

Antonio Brown says he’ll never play in NFL again

first_img Beau Lund Written by November 7, 2019 /Sports News – National Antonio Brown says he’ll never play in NFL againcenter_img FacebookTwitterLinkedInEmailPhoto by Allen Kee / ESPN Images(NEW YORK) — Ahead of his scheduled meeting with NFL investigators, former wide receiver Antonio Brown lashed out on Thursday, saying he would never again play in the league.Sources told ESPN’s Josina Anderson early Thursday that Brown would meet with the NFL next week regarding the sexual assault allegations made against him by multiple women. Hours later, Brown posted to Twitter and Instagram, saying “Imagine conforming to a system giving it a 100 percent to see them treat me like this is unfairly!”“Making money off my sweat and blood [expletive] the @nfl I’ll never play in that [expletive] treat black people worse!,” he added.He concluded his rant by demanding that the league “clear my name and go [expletive] your self.”The post on Instagram was later taken down.ESPN reported Thursday that multiple teams would be interested in signing Brown following the resolution of the league’s investigation. He was released by the New England Patriots in September after playing just one game for them, amid the storm of allegations.Brown joined New England after being cut by the Oakland Raiders. That followed a tumultuous offseason in which he suffered a foot injury in a cryotherapy accident, filed multiple appeals over the league’s helmet standards, and feuded with the Raiders over fines for missing team events.Copyright © 2019, ABC Audio. All rights reserved.last_img read more

Jobs across Australia’s oil and gas sector have declined by 25% during the pandemic

first_imgEngineering, construction and drilling are hardest-hit sectors of Australia oil and gas employmentOil and gas employment in Australia totalled around 110,000 workers in 2019, a tally that has been slashed to 82,000 since the pandemic took hold.Even prior to the coronavirus downturn, job opportunities across the sector had been in decline, with the size of the workforce dropping by 24% between 2014 and 2019.Engineering and construction roles have been the worst affected during the current downturn, accounting for 8,000 job losses – nearly 29% of the overall decline.Drilling has also been hard hit, with more than 1,100 jobs lost in Australia so far this year.However, Rystad estimates that rig demand in the country will grow between 2021-2025, which will offer “a much-needed respite to workers across the drilling segment”.One bright spot could be in the maintenance sector, as producers withhold capital spending plans and instead prioritise maintenance and upkeep of existing assets.“Maintenance has been one of the best performing segments historically, and may, yet again, remain resilient and avoid any steep job cuts compared to the rest of the industry,” the analysis notes.Despite some prospects for labour recovery, Rystad does not expect hiring levels to return to the highs that characterised the industry in 2014.It said: “This can be attributed to the fact that the present downturn has adversely impacted the ability of major operators to take the large-scale risks seen before the 2014 downturn – risks which helped Australia become the largest LNG exporter in the world.“With the breakeven prices for Australian gas assets already at the higher end, and existing LNG terminals failing to run at nameplate capacity, in addition to other concerns, operators are taking a more cautionary approach to new investments.“Combining these factors with the operational complications of Covid-19 means that operators are unlikely to make the large-scale investments they did in the heydays, thus directly impacting the labour requirement in the industry.” Engineering, construction and drilling sectors have been the worst affected (Credit: Kichigin/Shutterstock) Employment in the Australia oil and gas industry has shrunk by more than a quarter during the coronavirus pandemic, and may never return to pre-pandemic levels, according to an analysis.More than 28,000 jobs in the sector have been lost this year, as companies scale back their operations in the face of huge financial pressure triggered by lost demand and low commodity prices.While some jobs are expected to return from 2021 onwards as global markets start to recover from the crisis, a full restoration of the workforce would not occur for “at least” five years – and even that may be in doubt as the industry increasingly responds to the clean-energy transition.The analysis from research group Rystad Energy notes that a minimum of 20,000 jobs are expected to be returned by 2025 as the labour market rebounds after coronavirus, but the changing shape of fuel demand casts some uncertainty.“In the future, the growth in labour demand will not only be driven by oil and gas projects that are under development, but also to a great extent by the infrastructure initiatives undertaken by the Australian government to bring gas prices down across the country,” said Sumit Yadav, an energy service research analyst at Rystad Energy.The Amadeus-to-Moomba gas pipeline, Port Kembla LNG import terminal expansion and the Hunter Gas Pipeline, are all expected to support future employment growth by lowering the price of gas in key domestic markets.In addition, government interventions such as exploration and licensing-cost deferrals in South Australia could offer some relief – as could a “gas-led recovery” from the pandemic, as has been hinted at by the national government. More than 28,000 oil and gas jobs have been lost in Australia this year, and while employment will rebound it may not return to previous highslast_img read more

USA: 26th MEU Simulates Amphibious Beach Raid within COMPUTEX

first_img View post tag: News by topic View post tag: within Training & Education Back to overview,Home naval-today USA: 26th MEU Simulates Amphibious Beach Raid within COMPUTEX View post tag: Amphibious View post tag: MEU The 26th Marine Expeditionary Unit (MEU), underway with the Kearsarge Amphibious Ready Group (KSG ARG), conducted an amphibious beach raid exercise on Camp Lejeune, N.C., during Composite Training Unit Exercise (COMPUTEX) Jan. 29.The simulated raid exercise, which was held as a part of COMPTUEX, was designed to let the Marines and Sailors of the ARG practice working together in ship-to-shore operations.“We conducted an amphibious raid on Camp Lejeune, N.C., in support of the 26th MEU,” said 1st Lt. Jonathan Riebe, 1803 Amphibious Assault Vehicle (AAV) platoon commander. “This simulated exercise is part of COMPUTEX and was an exciting opportunity to demonstrate the Navy and Marine Corps capabilities.”Marines prepared and deployed AAVs and 300 personnel into waters just off the coast of North Carolina to discretely seize the beach and move inland. During this operation, North Carolina and surrounding states are surrogates for threatening territories.“This raid was very motivating,” said Sgt. Marcus Chantry Thornhill. “We were able to successfully pull together, prepare the Marines, equipment and AAVs and capture Camp Lejeune.”The ability to perform quick and successful amphibious assaults while transferring Marines and equipment from a ship several miles off of a coast and quietly subdue an area from the beach is an important capability of the ARG.“I am proud to be in the Marine Corps for exactly this reason,” said Lance Cpl. Raymond Mihalko. “We were able to work successfully with the USS Carter Hall and transport our Marines off of the ship and then back safely.”Carter Hall, along with amphibious assault ship USS Kearsarge (LHD 3) and amphibious transport dock ship USS San Antonio (LPD 17), is participating in COMPTUEX off the East Coast of the United States in preparation for an upcoming deployment this spring.COMPTUEX is conducted during a three-week period to test the capabilities of each ship within a battle group. The group is put through a series of drills that include small boat attacks, man overboard drills, firefighting exercises and amphibious ship-to-shore movements.[mappress]Naval Today Staff, February 4, 2013; Image: US Navy View post tag: beach View post tag: 26th View post tag: Raidcenter_img View post tag: simulates View post tag: Navy USA: 26th MEU Simulates Amphibious Beach Raid within COMPUTEX View post tag: Naval View post tag: COMPUTEX View post tag: usa Share this article February 4, 2013last_img read more

USI drops match with Butler 6-1

first_img USI drops match with Butler 6-1Men’s Tennis report written by Jostun Pomplun, USI Graduate AssistantBOX SCOREINDIANAPOLIS, Ind. – The University of Southern Indiana men’s tennis team dropped its second consecutive match against NCAA Division I competition, as they were defeated by Butler University 6-1 Sunday afternoon.Sophomore James Hardiman (Backwell Bristol, United Kingdom) continued to play well, as he accounted for USI’s only point of the day. He defeated Mason Dragos at number two singles 6-3, 7-6 (4).In doubles, the duo of Hardiman and freshman Denis Davydov (Chorvatsky Grob, Slovakia) were tied at four in their match, but the match was not finished as Butler had already won the point by winning the other two doubles matches.The Screaming Eagles battled in their other matches, but were unable to come away on top.USI will play its third NCAA Division I opponent in a row February 10, when they travel to Austin Peay State University. Start time is to be determined.Butler University 6, #37 Southern Indiana 1Feb 05, 2017 at Indianapolis, IndianaSingles competition1. Mikhell Khmiadashvil (BU) def. Samuel Kiladejo (USI) 6-0, 6-22. James Hardiman (USI) def. Mason Dragos (BU) 6-3, 7-6 (4-0)3. Spencer Lang (BU) def. Denis Davydov (USI) 6-2, 6-24. Ari Gerstein (BU) def. Aaron Barris (USI) 6-3, 6-35. Temilope Adelakun (BU) def. Ilia Karelin (USI) 6-2, 6-26. Adrian Mag (BU) def. Andrew Dones (USI) 6-2, 6-2Doubles competition1. Mikhell Khmiadashvil/Mason Dragos (BU) def. Aaron Barris/Samuel Kiladejo (USI) 6-32. James Hardiman/Denis Davydov (USI) vs. Temilope Adelakun/Spencer Lang (BU) no result3. Ari Gerstein/Alex Woldmoe (BU) def. Andrew Dones/Jack Lipchik (USI) 6-1Match NotesSouthern Indiana 1-2; National ranking #37Order of finish: Doubles (3,1); Singles (1,4,3,2,6,5)FacebookTwitterCopy LinkEmailSharelast_img read more

OCHS Hockey Team Falls to West Essex

first_imgOlivia Vanesko scores one of her two goals in the game for the Red Raiders. By LESLEY GRAHAMThe Ocean City High School field hockey team suffered a 7-2 loss Saturday morning to undefeated West Essex.The Red Raiders are now 3-2 on the year, while West Essex is 5-0.Olivia Vanesko, a sophomore for Ocean City, scored both goals on the afternoon, with each tally coming in the second half.Ocean City got off to a sluggish start, spending most of the first half of the game in the defensive end. Thanks to some quality defensive work by Grace Burke, Morgan Pizagno and Sophia Ruh, the Red Raiders were able to hold the Knights of West Essex to three goals. Ocean City trailed 3-0 at the half.Ocean City’s Junior Captain Tara McNally takes a shot during a penalty corner.As the Red Raiders started to settle in during the second half of play, their offensive opportunities began to surface. With under five minutes of play, Vanesko found the back of the net for her first tally to cut West Essex’s lead to 3-1.West Essex was awarded a corner penalty, which allowed the Knights to regain a three-goal differential, at 4-1.Less than four minutes later, Ocean City had a corner penalty, but was unable to finish and West Essex used quick passing and aggressive ball play to push the pace to their offensive side and find the back of the net. With under 20 minutes to play in the second half, West Essex had a solid 5-1 lead.Ocean City was not giving up, though, and after some back and forth action in the midfield, Vanesko chipped in her second goal of the day off a pass from Morgan DeCosta.Ocean City had once again fought its way back to only a three-goal deficit. The Red Raiders had another scoring opportunity on a corner, but the West Essex goalkeeper, senior Tara Smith, made a phenomenal kick save on what would have ordinarily been a sure goal for Ocean City.Ocean City’s defensive unit works together to prevent West Essex from scoring.West Essex would score two more times in the game to finish off the Red Raiders.Ocean City Head Coach Kelsey Mitchell wanted to make sure her team knew just what could be accomplished by scheduling tough non-conference games early in the season.“We schedule these games to be battle-tested. It’s an opportunity and a measuring stick to show what we are capable of and what we can improve on. So far, we have been doing a good job of that,” Mitchell said in a post-game interview.“We have some really tough games early in the season, so we can work the kinks out by October and be ready for playoffs,” Mitchell continued.The Red Raiders are back in action Monday for a 4 p.m. home contest.Sophia Ruh clears the ball out for Ocean City.last_img read more

Chris Robinson Brotherhood, Jackie Greene & More Rock Out At 4 Peaks Music Festival [Review/Gallery]

first_imgIt’s hard to imagine a festival more friendly and intimate than the 4 Peaks Music Festival. Located a few miles outside of Bend, Oregon, 4 Peaks has been in business for nine years and, while growing very modestly, hasn’t lost its relaxed and welcoming vibe.The kid friendly nature of this event has obviously been embraced by parents around the region, as witnessed by the large number of kids enjoying and adding to the weekend’s events. A large area was designated the kid’s zone, where youngsters were encouraged to play instruments, juggle, make bubbles, and otherwise entertain themselves and others. Indeed, games for kids and adults, along with the small size of the festival, where a large percentage of faces in the crowd became familiar over the course of the weekend, gives 4 Peaks the feel of a nice backyard party when compared to a lot of other, bigger festivals.You could be camped in the far corner of the festival grounds, and it was still only a five-minute walk to get back to your spot. Musical acts switched back and forth between the main stage and the tented side stage, making for a natural flow back and forth and no musical downtime. Honey Don’t and the Student Loan String Band provided entertainment on Thursday for those arriving early for the weekend.Rain arrived on Friday, coming down hard enough to put an end to the Jeff Austin Band set. The music for the rest of the day would be playing inside the tent. It can always be a letdown when bands don’t get to play their allotted slot, but such is life at an outdoor festival. And the more intimate side stage ensured that everyone was up close and personal to experience a scorching Jackie Greene Band performance. He confidently led his band through a set of originals and offered some well-received covers. The Grateful Dead’s “New Speedway Boogie” was especially ripping, and the “Shakedown Street” > “Another Brick In The Wall” > Shakedown Street” extended more than a few jaws to the floor.After an encore of “Jack Straw” and the Beatles’ “Don’t Let Me Down,” the stage was quickly reformatted to allow Poor Man’s Whiskey to jam into the night. This set was dominated by cover songs and special guests. Poor Man’s Whiskey is well-known for applying their high octane bluegrass style to popular albums, including Pink Floyd’s Dark Side Of The Moon and, more recently, Paul Simon’s Graceland. They pulled from those two albums, and played numerous other rock, pop, and Americana songs with a seemingly endless stream of guests, which helped attendees forget all about the rain.On Saturday, as the skies slowly cleared, fans shed layers of clothes and soaked up stretches of sunshine. Early on, the main stage remained empty and sets were played on the side stage in the tent.Saturday featured an eclectic array of music that melded together nicely and included something for everyone. From Jellybread’s funky opening set that got bodies warmed up early in the day, to the all-female Della Mae offering soothing yet springy acoustic music that featured strong original compositions along with a choice Dolly Parton cover. Rabbit Wilde stared off on the mellow side but built in energy until dancers of all ages were getting down and stompin’ it out. Blues guitar legend Robben Ford, who has collaborated with Miles Davis, George Harrison and Joni Mitchell, offered up a strong set of driving blues numbers with his power trio.World’s Finest plays infections reggae-infused string music, and they had fans in the tent feeling the groove. Poor Man’s Whiskey has been a staple at 4 Peaks since the beginning, and fans showed their appreciation during their main stage set. Grant Farm, led by National Flatpicking Guitar Champion Tyler Grant, delivered a well-received set of their “Cosmic Americana.”Folks were excited all weekend for the Chris Robinson Brotherhood headlining set on Saturday, and they were not disappointed. There was a bit of a chill in the air but no sign of rain as the band took the stage. Although it’s getting rarer as this band continues to tour and make albums, there are still fans who assume they will get a show heavy with Black Crowes tunes, or even a nostalgia act. What they get instead is a set of highly original psychedelic rock n’ roll from a band that is clearly having fun and connecting with their audience. CRB staples like “Narcissus Soaking Wet” and “Beggar’s Moon” were accompanied by new songs such as “California Hymn.” A closing “Hard To Handle” had the entire crowd singing along.Portland darlings Crow and the Canyon had the honors of closing out Saturday’s side stage, and it was a solid celebration of American roots music. Much like the night before, special guests flowed to and from the stage. As glowing headphones started filtering into the crowd at the back of the tent (a silent disco and late-night movie were new additions to 4 Peaks this year), the band played on. It was apparent, whether you were listening to music from the stage or through the airwaves, that dancing and smiling had won the day.Sunday, after the last notes were played, festival organizer Stacy came out to thank everyone, and let people know that next year the festival would be held at a different location. Although the new location has yet to be determined, the family-friendly, neighborly vibe that organizers and fans have manifested going into their 10th year, is sure to remain intact.A full gallery of images from Greg Homolka Photography can be viewed below. Load remaining imageslast_img read more

Umphrey’s McGee Announces Webcasts For 4-Night Southern Run This Weekend

first_imgThis weekend, Umphrey’s McGee will return to the South, with a four-night run across Florida and Tennessee. Starting off tonight, Thursday, August 16th, the band will kick off the run with a stop in Orlando, Florida. From there, the band will continue their mini-tour through Florida, with stops in Miami Beach on Friday and St. Augustine on Saturday. To round out this weekend’s run, on Sunday, August 19th, Umphrey’s McGee will finish out the weekend strong with a performance in Knoxville, Tennessee.Today, the band has announced that each of its four upcoming show this weekend will be available to view from home as a webcast. Via Tourgigs, Umphrey’s is offering individual show webcasts as well as a four-night package. For more information and to purchase, head to Tourgigs.com here.last_img read more

HSPH researchers help boost public health in India

first_img Read Full Story Harvard’s connections in India—research collaborations, academic exchanges and partnerships, business ventures involving alumni and faculty—have expanded in recent years, in tandem with the country’s rapid growth. Those connections, including efforts spearheaded by Barry R. Bloom, Atul Gawande, and Richard Cash of Harvard School of Public Health (HSPH), are outlined in the March-April issue of Harvard Magazine.Bloom, Harvard University Distinguished Service Professor and Jacobson Professor of Public Health at HSPH, worked with the Indian government and philanthropists during his tenure as HSPH dean (1998-2008) to help establish four schools of public health in India. He first traveled there in 1970 to research leprosy and taught the country’s first-ever course on immunology in 1972 at the All India Institute for Medical Science.Gawande, associate professor in the Department of Health Policy and Management at HSPH and associate professor of surgery at Harvard Medical School, hopes to improve maternal and newborn health under a $14 million grant from the Bill & Melinda Gates Foundation to test a safe childbirth checklist in 120 Indian hospitals.Cash, senior lecturer in the Department of Global Health and Population, supervised a team of HSPH students who spent three weeks in January 2012 studying water and sanitation issues in a Mumbai slum known as Cheeta Camp.last_img read more

Plant a Little History.

first_imgIf gardening is your favoritehobby, the winter weather may be putting a damper on your fun.Don’t let it. Spend these cool months planning your spring gardenand selecting your seeds.Follow in Your Grandfather’sGardening FootstepsWhy not try something a littledifferent this year? Plant some of the same seeds your great-greatgrandfather may have planted. Where can you get such jewels? They’reeasy to find now, thanks to the Southern Seed Legacy (SSL) Project.The SSL Project began as a three-yearproject funded by the Southern Region Sustainable AgricultureResearch and Education (SARE) program. SARE’s southern officeis at the University of Georgia College of Agricultural and EnvironmentalSciences campus in Griffin, Ga.The SSL Project’s original goalwas to preserve the diversity of Southern seeds. The project wasled by UGA anthropologist Bob Rhodes and has received recognitionfrom the U.S. Secretary of Agriculture for its efforts in maintainingagrodiversity.Bringing Seed SaversTogether”Over the first three years,the project established a database of people who save seeds orwant to save seeds,” said Gwen Roland, information specialistfor the Southern Region SARE program.”The people in this databasewho provide seeds for the collection also bank their memories,”she explained. “They describe how they remember the plantbeing grown, what it tastes like and any cultural information.”Memory banking involves more thanjust whether it was planted in hills rather than rows or thatit needs a lot of water.”It’s more like how it wasused in a holiday dish or other information that places it ina cultural setting,” Roland said.Contributorsto the database come from across the southern states. One of thefirst contributors to the seed bank was 82-year-old Ernest Keheleyof Marietta, Ga. He donated a host of heirloom seeds includingBig Boy Bean, Blue Goose Bean, Hastings Cornfield Bean, HerculesPea, Pink Eye Pea, Rattlesnake Bean and Red Ripper Pea.In addition to his seeds, Keheleydonated his memories that are attached to each variety and histricks of the gardening trade. One of his tricks is a seed mixtureof Hickory King Corn, Hastings Field Corn and three or four bean varieties.He says planting this mix is more efficient and the pole beanseventually climb up the cornstalks and use them for support.More Than Just aPackage of SeedsNow that the project’s originalfunding period is over, the database will keep running as a privateentity. Through annual $10 memberships to the SSL network, gardenersget a quarterly newsletter, heirloom seeds to plant and discountson SSL events such as the annual seed swap.”There’s also a wonderfulteacher’s kit available that guides teachers through introducingstudents to heirloom seeds and interviewing seed savers,” saidRoland. “You can also get a field manual for collecting anddocumenting seeds.”Roland cautions that joining SSLand getting heirloom seeds from their seed bank shouldn’t be ahasty decision. “The seeds come with a commitment,” Rolandsaid. “If you go into seed saving, you haveto be willing to follow through.”The Seeds Come With a CommitmentRecipients of the seeds must agreeto keep detailed records of their plantings, including photosof the crops’ performances in the field and in the kitchen. Thegrower also agrees to pass along a third of the harvested seedsto another gardener, give a third back to SSL for the seed bankand keep a third for their own enjoyment.”This ensures the heirloomvarieties will continue to multiply and be passed along,”said Roland who joined the seed savers group this year. “Ijust received my first packet of Red and Back Field peas and I’mactually a little nervous. These seeds can be traced back to the1800s, and suppose my guineas eat them!”Aside from the historical aspect, what’s so special about heirloom seeds? “Many of these seeds are open pollinated varieties,” Roland said. “People grow them for a variety of reasons such as flavor or the ability to withstand adverse growing conditions.”Roland says most seed companiesshy away from heirloom seeds, but there are some seed companieswho specialize in them. “Heirloom seeds aren’t patented,”she said.For more information or to join SSL, write to Southern Seed Legacy, c/o Agrarian Connections, 10 Legacy Road, Crawford, Ga. 30630 or visit the SSL Web site at www.uga.edu/ebl/ssl.last_img read more