Evolution of the Antarctic Peninsula lithosphere: evidence from Mesozoic mafic rocks

first_imgNew geochronology from a thick (> 800m) basaltic succession along the eastern margin of the Antarctic Peninsula confirm a Middle Jurassic age (178 ± 1 Ma). This marginally postdates the adjacent Ferrar large igneous province of the Transantarctic Mountains and predates the extensive silicic volcanism of the Mapple Formation (~ 170 Ma) of the Antarctic Peninsula. The geochemistry of other rare, but broadly contemporaneous, basaltic successions of the Antarctic Peninsula, along with Cretaceous-age mafic dykes, are used to interpret the influences of lithospheric and asthenospheric mantle sources during the Mesozoic. Two significant high magmatic addition rate events occurred along the Antarctic Peninsula continental margin at 170 and 110 Ma and can be correlated to events along the South American Cordillera. These ‘flare-up’ events are characterised by extensive silicic (mostly ignimbrite) volcanism of the Chon Aike Province (V2 event: 170 Ma) and significant granitoid batholith emplacement of the Lassiter Coast intrusive suite (110 Ma). The 170 Ma event is exposed across large parts of the northern Antarctic Peninsula, whilst the 110 Ma event is more widespread across the southern Antarctic Peninsula. The basaltic volcanism described here precedes the ‘flare-up’ event at 170 Ma and has geochemical characteristics that indicate a thickened lithosphere prevailed. A major dyke swarm that followed the 170 Ma event indicates that extensive lithospheric thinning had occurred, which allowed the ascent of depleted mafic melts. The thinning was the direct result of widespread lower crustal/upper lithospheric melting associated with the silicic volcanism. In the southern Antarctic Peninsula, the lithosphere remained over thickened until the emplacement of the major batholiths of the Lassiter Coast intrusive suite at 110 Ma and was then immediately followed by the emplacement of more asthenosphere-like melts indicating extensive lithospheric thinninglast_img read more

African Petroleum hopes to get clarity on Gambian situation in August

first_imgThe Gambia  Senegal African Petroleum (AP) has allowed for its exclusivity agreement with an unnamed oil and gas company, covering the farm-out of the SOSP license in Senegal and the A1 and A4 licenses in The Gambia, to lapse while hoping to resolve the uncertainty over its position in The Gambia early next month. African Petroleum holds a 90% operated working interest in exploration blocks Rufisque Offshore Profond (ROP) and Senegal Offshore Sud Profond (SOSP). The National Oil Company Petrosen holds the remaining 10% equity. In The Gambia, AP holds a 100% operated working interest in offshore licenses A1 and A4.African Petroleum said on Thursday it allowed the exclusivity agreement to lapse to enable it to engage with other interested parties for the SOSP license in Senegal and to provide flexibility in government discussions regarding the A1 and A4 licenses in The Gambia.To remind, the exclusivity agreement provided a framework for the incoming third party to secure a 70% operated interest in African Petroleum’s SOSP production sharing contract (PSC) in Senegal and the A1 and A4 licenses in The Gambia. It was agreed in April and extended in June to allow time to complete the process and finalize negotiations with both governments.However, reports emerged in early July that the Gambian government had ended talks with AP for the extension of exploration rights for the two offshore blocks, while looking for new investors. AP claimed the licenses had not been terminated nor had they expired. Since then, the company has been trying to resolve the situation in The Gambia.Back to current developments, AP said that the exclusivity agreement, which regarded both countries as one transaction, was viewed as too restrictive, as the company could not secure the SOSP license extension without first resolving the situation in The Gambia.That in addition to recent developments whereby the Senegalese authorities have expressed a willingness to proceed with the SOSP license extension upon the company securing a farm-out, contributed to AP allowing the agreement to lapse on Thursday, thereby enabling the company to enter into discussions with other interested parties in its SOSP License in Senegal whilst it seeks to resolve the situation in The Gambia. When it comes to Senegal, AP stated that the Senegalese authorities are currently considering the company’s proposal to extend the SOSP license for a period of 18-24 months in order to allow additional time to acquire 3D seismic and to drill an exploration well on the block.Any such extension is conditional on African Petroleum bringing in a suitable partner on the license and to this end, the management team will start discussions with a number of companies who had expressed interest in farming into SOSP but were restricted from entering into commercial negotiations as a result of the exclusivity agreement that had been in place since mid-April 2017.According to the company, the SOSP license continues to generate industry interest and the company hopes to finalize a standalone farm-out transaction on the SOSP license shortly in order to enable the license extension to be granted. African Petroleum continues to reserve its rights on the ROP license while it negotiates the SOSP extension.Commenting on the update, African Petroleum’s CEO, Jens Pace, said: “After much consideration, we have decided to allow the exclusivity agreement to lapse as we now have more flexibility to engage in standalone commercial discussions on our SOSP license in Senegal whilst we seek to resolve the uncertainty over our position in The Gambia.“We have continued to engage with the relevant authorities in The Gambia and had an audience with the President who is well informed of the situation and understands the measures that we will take should we not receive a positive outcome next month. I think the fact that we were granted an audience with the President highlights that the significant investment made by the company in these licenses is recognized by the Gambian government and we hope that sense will prevail in finding a way forward.“Our near-term focus will be on seeking a positive resolution on our position in The Gambia whilst concurrently formalizing an agreement for SOSP license. We know that there are a number of interested parties who we expect to engage with in the coming days now that we are no longer bound by an exclusivity agreement.”Offshore Energy Today Staff Since the announcements in early July 2017 regarding its A1 and A4 licenses in The Gambia, the company said it has been engaged in dialogue with Gambian officials with a view to identifying a solution that is in the best interest of all stakeholders. The company confirmed that a local representative for the company met with the Minister for Petroleum and Energy and Permanent Secretary on July 6, and a delegation from African Petroleum, including the CEO and CFO, traveled to The Gambia for a meeting with President Barrow in Banjul on July 13.Further to the meeting with the President and subsequent dialogue, it is the understanding of the management team that the government is considering the company’s proposal regarding the licenses and it is anticipated that the company will receive formal feedback and clarity on the situation from the government in early August 2017, AP said.The company has also reiterated its firm position over its legal rights to the A1 and A4 licenses in The Gambia and has communicated to the government that it will utilize the dispute resolution mechanism provisions of the licenses should the outcome of the government’s decision not be favorable to the company.In the meantime, the company noted it has been approached by other industry players that are interested to join it in the A1 and A4 licenses when the situation with the Gambian government is resolved.last_img read more

Bruins look vulnerable in Pac-10 finale

first_imgSEATTLE – Arron Afflalo said it time and again, and so did Darren Collison. They are UCLA’s leaders, but both said throughout the season how, despite the team’s star power, every member was valuable. A theory that might have fallen on deaf ears before was made loud and clear Saturday in the No. 2 Bruins’ 61-51 loss against the Washington Huskies, when the Bruins showed the razor-thin line between being one of the nation’s elite teams, and just another good team. UCLA center Ryan Wright and power forward James Keefe, who teamed to replace Aboya, scored two points, committed four fouls and failed to grab a rebound. “They didn’t get a rebound between the two of them in 14minutes,” UCLA coach Ben Howland said when asked to assess the play of Aboya’s replacements. “We missed a lot of block outs that led to second-shot opportunities,” Howland said. “Did we miss Alfred? Yes, absolutely, we missed him. But does he make up 15 (rebounds)? Absolutely not.” Shipp led UCLA with 13points, Afflalo added 12 and Collison had five as he labored through a 2-for-15 shooting display. UCLA, which missed its first seven shots and trailed 9-0nearly six minutes in, scored a season-low 20 points in the first half and shot suffered through a horrific shooting 31.3percent overall. “They were more patient than we were in the half-court offense,” Howland said. “When that happens, and we we’re taking quick shots & I expected to come out and play really good, and we didn’t.” Perhaps the best news for UCLA is Aboya said he expected to play Thursday in the Pac-10 Tournament. 160Want local news?Sign up for the Localist and stay informed Something went wrong. Please try again.subscribeCongratulations! You’re all set! With backup Alfred Aboya and his 17 minutes per game on the bench with a knee injury, UCLA was pounded on the boards, lacked the type of intensity Aboya usually helps generate, and ended the regular season with a loss at Bank of America Arena. The loss ended a five-game winning streak, but doesn’t figure to impact the Bruins’ chances of being a No. 1 seed in the NCAA Tournament’s western regional – providing top-seeded UCLA doesn’t exit next week’s Pacific-10 Tournament early. center_img Still, the sting of losing here for the third straight season was felt harshly. “We didn’t play hard enough,” UCLA center Lorenzo Mata said. “That’s something we have to do every game. We have to play harder than our opponent, and it’s something we didn’t do.” The Bruins (26-4, 15-3) did not excuse their lack of energy on circumstance, namely wrapping up the Pac-10 title Thursday at Washington State, which rendered this game against Washington (18-12, 8-10) meaningless. “We didn’t come out ready to play,” said Afflalo, UCLA’s junior guard. “I don’t know why. They out-physicaled us, they outplayed us in every aspect of the game, and it’s embarrassing. I don’t know what we were resting on. There’s no excuse to come in on national television and not compete for 40 minutes.” Washington’s dynamic inside duo of power forward Jon Brockman (20 points, 13 rebounds) and center Spencer Hawes (13, 15) led the Huskies to a 15-rebound advantage (44-29). last_img read more

Second half surge for New South Wales

first_imgBy BEN HARRISNew South Wales are one win away from claiming the men’s open division following a 10-7 victory against Queensland as the first games of the State of Origin series wrapped up on Friday night at Sunshine Coast Stadium.Boyed by seven touchdowns in the second half, New South Wales ran over the top of Queensland towards the end of the match to lead the three-game series 1-0.As expected, the match was fast, skilful and had the odd push-and-shove between opponents.In the opening three minutes the score was 3-1 to Queensland.Both teams scored in their first set of six of the match.Matthew Prowse had an early double for New South Wales as his team trailed by one touchdown after five minutes.The quick scoring subsided and was replaced by brilliant defence.New South Wales levelled the scores at 3-all in the 15th minute when Sam Brisby scored the first of his three touchdowns.But a minute before the break, Queensland hit the lead again when Shaun Francis was the beneficiary of quick hands to make the scores 4-3.Much like how the first half had started, the second stanza began with two touchdowns inside 90 seconds.Both were scored by New South Wales and the boys in blue had hit the lead for the first time.Four more touchdowns scored inside two minutes of each other had the scoreboard attendant calling for assistance as New South Wales blew the score out to 8-6 in their favour.Queensland’s Lachlan Pierce bagged his second for the night, which gave the home side some life but when Scott Buckley snatched an intercept and raced away to score, it was game over.New South Wales need to win one of the two matches on Saturday to take out the division.NEW SOUTH WALES 10 (Sam Brisby 3, Matt Prowse 3, Terry Deegan, Ben Moylan, Scott Buckley, Stuart Brierty touchdowns) def QUEENSLAND 7 (Shaun Francis 2, Lachlan Pierce 2, Theo Majid 2, Justin Mitchell touchdowns). HT: QLD 4-3; NSW lead the division 1-0.There are plenty of ways to keep up-to-date with all of the latest results, news and information from the 2014 State of Origin. The Touch Football Australia and State of Origin websites will be updated regularly throughout the event with all of the latest information and can be found by clicking on the links below: www.soo.mytouchfooty.com www.touchfootball.com.au All of Touch Football Australia’s social media pages will be regularly updated throughout the NYC event, so be sure to ‘like’ and ‘follow’ us by clicking on the links below. Facebook – www.facebook.com/touchfootballaustralia Twitter – www.twitter.com/touchfootyaus (be sure to use the hashtag #soo2014) Instagram – www.instagram.com/touchfootballaustralia (be sure to use the hashtag #soo2014) The TFA YouTube channel will also have highlights and live games streamed throughout the event. Please click on the link below to be taken to the channel, and be sure to become a subscriber to the channel – www.youtube.com/touchfootballausPlease note, the link for the Open’s games by television production company, Power Productions – https://new.livestream.com/powerproductions/2014stateoforiginseriesRelated LinksSOO men’s openlast_img read more

10 months agoHuddersfield join race for Liverpool striker Dominic Solanke

first_imgHuddersfield join race for Liverpool striker Dominic Solankeby Paul Vegas10 months agoSend to a friendShare the loveHuddersfield Town have joined the race for Liverpool striker Dominic Solanke.Sky Sports says Huddersfield will battle Crystal Palace to snap up Liverpool forward Solanke.The Terriers were keen on the 21-year-old earlier this season and want to sign him on loan.But Palace, who sit 14th in the Premier League table, will challenge Town for the signature of Solanke, who is yet to make an appearance for the Reds this term. Rangers boss Steven Gerrard is also watching developments. TagsTransfersAbout the authorPaul VegasShare the loveHave your saylast_img

10 months agoPhilippe Sandler delighted with Man City debut

first_imgPhilippe Sandler delighted with Man City debutby Paul Vegas10 months agoSend to a friendShare the lovePhilippe Sandler was delighted to make his debut for Manchester City in yesterday’s FA Cup win over Rotherham.The Dutch defender, who was played at centre-half, featured as a second-half substitute for the 7-0 thumping.Sandler said, “I always play there. Honestly, I have never been in the midfield. Why now? I stood there during the training session. Sending passes. Since I’ve been here, I try to develop as a central defender. “Vincent Kompany helps me enormously. I learn a lot from him. “I do not know if I will get another chance again soon. I especially want to be completely fit first.” About the authorPaul VegasShare the loveHave your saylast_img

Saskatchewan premier going to Washington DC after steel tariffs announced

first_imgREGINA – Saskatchewan Premier Scott Moe is heading to Washington, D.C., next week to meet with officials about the United States imposing tariffs on Canadian-made steel and aluminum.Moe says the tariffs, which he calls troubling, will hurt the Evraz steel plant in Regina, which employs about 1,000 people. He adds that he doesn’t think any trade war is productive.“We’ve always been supportive of free and open trade and we continue to be, so we’ll be engaging next week in Washington on this file as well as the broader NAFTA file,” Moe said Thursday.The Saskatchewan government is to meet with senators, members of Congress and three senior members of the White House.Within hours of the U.S. announcement on Thursday, the federal government retaliated by imposing dollar-for-dollar tariff “countermeasures” on up to $16.6 billion worth of U.S. imports into Canada.The tariffs, which apply to a long list of U.S. products that includes everything from flat-rolled steel to playing cards and felt-tipped pens, are to go into effect July 1, Foreign Affairs Minister Chrystia Freeland told a news conference.Moe said he’s also spoken with Conrad Winkler, the CEO and president of Evraz North America. The two plan to talk further over the phone in the coming days, he said.“Challenging time I’m sure for a company like Evraz that has plants on both sides of the border, and they’ll be assessing how that impacts them as well, I’m certain,” Moe said.Canada, Mexico and Europe had been exempted from import duties of 25 per cent on steel and 10 per cent on aluminum when they were first imposed in March.Moe, who will be visiting Washington for the first time, talked to Prime Minister Justin Trudeau on Wednesday prior to the U.S. move to lift the exemption and praised the federal government for its work on North American Free Trade Agreement talks.The premier said that 55 per cent of the province’s exports go south of the border and 85 per cent of its imports come from the U.S.One in five Saskatchewan jobs are dependent on trade with other nations, including the U.S., he added.Moe said he’ll be making all those points during his visit.“I’ll be impressing the impact on our province, on the jobs of the province and on the strength that we have globally when we have strong arrangements across the border,” he said.— Follow @RyanBMcKenna on Twitterlast_img read more

Forecast calls for 500 fewer wells this year despite higher global oil

first_imgCALGARY – The head of Canada’s largest drilling company says he’s not surprised that a Canadian drilling forecast is being chopped despite higher global oil prices so far this year.Kevin Neveu, CEO of Precision Drilling Corp., said Tuesday his company is in the process of moving an idle drilling rig from the Deep Basin of northwestern Alberta to Pennsylvania, where it is expected to find work drilling natural gas wells in the Marcellus Basin.In the past two years, Precision has authorized the building of two new rigs in the U.S. but none in Canada, he said, because demand hasn’t justified it.“Oil prices are not too bad — and when you throw in the exchange rate, they’re actually probably OK — but a lot of our Canadian customers are still quite gassy in their production and rely on natural gas sales to fund a lot of their programs,” said Neveu.“With (Alberta) AECO prices so tight, it’s just really tough for a lot of our customers.”The Petroleum Services Association of Canada said Tuesday it is cutting its 2018 Canadian drilling forecast by 500 wells to 6,900 oil and gas wells, 200 fewer than were drilled in 2017, and nearly seven per cent less than its April forecast for 7,400 this year.“In general terms, revenue numbers for our sector are up year over year but we note that several publicly traded Canadian service companies are reporting minimal improvement in the quality of bottom line earnings; many are sitting at near breakeven or are still in negative territory,” PSAC CEO Tom Whalen said.“This is not sustainable from a business continuity and competitiveness perspective. It’s also a compounding symptom of the sector’s lack of attractiveness for investment.”Producers are drilling longer wells but the number of wells is down by 200 through six months of 2018 compared with the same period of 2017, PSAC reported.Benchmark New York oil prices averaged US$67.91 per barrel in the second quarter ended June 30, up from US$48.33 in the same period of 2017, but Alberta natural prices fell to C$1.20 per million British thermal units from C$2.69.Whalen says Canadian companies aren’t able to gain from higher world crude prices because pipeline capacity is inadequate to take products to market, resulting in higher-than-usual price discounts for western Canadian oil.Meanwhile, natural gas prices continue to languish thanks to both gathering pipeline constraints in B.C. and Alberta and competition from burgeoning U.S. shale gas plays.Precision reported last week it had 78 rigs operating from its fleet of 103 in the United States as of June 30 but only 60 from its larger fleet of 136 in Canada.U.S. operations have recovered to about 80 per cent of their peak 2014 activity but Canadian operations remain at less than 40 per cent, Neveu said.Earlier this year, Calgary-based Akita Drilling Ltd. and Trinidad Drilling Ltd. each announced they would move rigs from Western Canada to West Texas at the invitation of producer customers.Follow @HealingSlowly on Twitter.Companies in this article: (TSX:PD, TSX:AKT, TSX:TDG)last_img read more

Malone seeking career as a doctor after football

As a senior at Gahanna Lincoln High School in 2005, Chris Malone earned all-district and second team all-Ohio Capital Conference as an offensive lineman. After receiving scholarship offers from some Football Championship Subdivision schools, Malone instead decided to join Ohio State as a walk-on. “I grew up loving the Buckeyes and I knew that if I didn’t give this a shot that I was always going to wonder ‘what if?’” Malone said. Malone redshirted in 2006 and then worked with the scout team as a freshman and sophomore. In his junior season, Malone’s perseverance paid off as he received scout team workhorse honors for the Navy and Iowa games and earned a little bit of playing time. “Even though we don’t make the highlights on ESPN, we know we do make a difference,” Malone said. “We get a chance to make our defense better every day by just playing our hardest during practice and challenging them.” As a senior, Malone continues working hard and earned playing time against Ohio University. Malone is majoring in biology at OSU and wants to pursue medical school after he graduates. “I would love to be a doctor, that’s always been my goal, that’s always been my dream,” Malone said. read more

Mens lacrosse Ohio State to square off against familiar face in NCAA

Ohio State senior attack Eric Fannell scored five goals in the Buckeyes dramatic comeback 11-10 overtime victory over Maryland on April 22 at Ohio Stadium. Credit: Courtesy of OSU AthleticsWHAT: NCAA Men’s Lacrosse Championship – No. 3 Ohio State vs. No. 1 Maryland at Gillette Stadium in Foxborough, Massachusetts.HOW TO WATCH: ESPN2 at 1 p.m. Streaming on WatchESPN app and ESPN3.comIt all comes down to this. A matchup of Big Ten rivals who have battled neck-and-neck all season will determine the next NCAA men’s lacrosse champion.The No. 3 Ohio State men’s lacrosse team (16-4) has battled No. 1 Maryland (15-3) twice this season, edging out the Terrapins at home in an 11-10 overtime thriller on April 22, and losing 10-9 in the finals of the Big Ten tournament in Columbus.After the team lost to Maryland in the tournament finals, coach Nick Myers and the rest of his unit believed that if they played to the level they were capable of, this season would end in a matchup between them and their East Coast rivals.“We have a ton of respect for Maryland,” Myers said. “We felt that night, we looked at each other and without knowing how this was going to turn out, ‘Hey, we’re going to see these guys again if we take care of business.’”Though the teams have built up a rivalry through their close, competitive games this season, Myers said that contempt for the opposition will not be the driving factor behind their play on Monday. Instead, respect for the opposition and the desire to play their best possible lacrosse would be what pushes the Buckeyes to play well.“You have to play your best lacrosse if you want to try to go out there and beat Maryland,” Myers said. “I think that that, more than contempt, is what it brings out.”The players echoed Myers’ sentiment.“The whole team is excited to play Maryland again,” senior attackman Eric Fannell said. “They’re a very, very good team, as coach Myers said. We have a lot of respect for them. And every time we play them, we play to our best ability and so do they. Big Ten matchup again. Grudge match.”The two teams will enter the game coming off a pair of narrow victories in the semifinals. OSU edged out Towson 11-10, and Maryland hung on late against fifth-seeded Denver to win 9-8.Though both games were close, and relatively low-scoring, the Buckeyes are prepared for a game that could be more of an offensive show, taking on a team that averaged the 10th-most goals per game in the NCAA this past season (12.67 goals per game).“They play a good team offense,” Myers said. “They’ve got a good front six — as good a front six as there is in lacrosse. We feel strongly in ours, and I think you’re going to see a collision tomorrow as you did in the first couple games.”The matchup in the Big Ten tournament championship game did not prove to be quite the offensive show many expected, until late in the game when a total of nine goals were scored in the fourth quarter in an eventual 10-9 Maryland victory.Myers believes that for the Buckeyes to find success against the Terrapins on Monday, the Buckeyes will need to put together an offensive effort capable of keeping up with their opponents.“That was a heavyweight slugfest that you saw in the Big Ten championship,” Myers said. “We’re chasing our best offense, and for us to accomplish the ultimate goal, we’ll have to do that. I think Maryland’s going to bring that out in us.”But this time, the stakes are a bit higher than they were the last time these two teams met. It is no longer a Big Ten title on the line. Now it’s for the NCAA championship.In the history of OSU lacrosse, the team has never made it to this point. It had never even made it to the semifinals before this season. And now, on the doorstep of history for the program, seniors like midfielder Jake Withers believe that while the program has vastly surpassed expectation in their tenure, the end goal has still not yet been reached.“We came a long way since my freshman year four years ago, and we’ve stumbled and we’ve made some steps. I feel like this year, you know, the progression that we’ve made to championship weekend is a culmination of all those things together,” Withers said. “With that said, we’re not done. Although we made a championship weekend and championship game, we want to make history and be the first Buckeye lacrosse team to bring the trophy back to Columbus.” read more