FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W1986812122> ?p ?o ?g. }

• W1986812122 endingPage "3160" @default.
• W1986812122 startingPage "3138" @default.
• W1986812122 abstract "Detailed sedimentological and microtextural analyses of newly-discovered late Neogene diamictites and other coarse-grained facies, mostly sandwiched between hyaloclastite of the James Ross Island Volcanic Group and Cretaceous sandstone and mudstone, indicate deposition mainly by glacigenic debris flows. The deposits on James Ross Island (northern Antarctic Peninsula) constrain the depositional setting, ice–bed dynamics and regional palaeoclimate. The sequences on James Ross Island vary in age but are mainly late Miocene and Pliocene. Unlike Neogene sedimentary sequences elsewhere in Antarctica, those on James Ross Island are unusually well-dated by a combination of 40Ar/39Ar and 87Sr/86Sr analyses on fresh interbedded lavas and pristine bivalve molluscs, respectively. The Sr isotopic ages of the debris flows cluster around 4.74, 4.89, 5.44, 5.78, and 6.31 Ma and probably date relatively warm periods in the northern Antarctic Peninsula region, when the bivalves lived under ice-poor or seasonally ice-free conditions. The bivalves are often remarkably well-preserved, lack adhering lithified sediment and, in at least two locations, are large, mainly unfragmented and sometimes articulated, suggesting that they were alive immediately prior to their incorporation in subaqueous debris flows at the margins of an advancing glacier. These fossiliferous glacigenic debris flows signify episodes of ice expansion during relatively warm periods, or “interglacials”, of the late Miocene and Pliocene. The James Ross Island glacigenic sedimentary successions attain thicknesses of up to 150 m and extend over 4 km laterally. The high volume of glacigenic sediment delivery implicit in the James Ross Island successions indicates that a series of dynamic ice fronts crossed the region during the late Miocene and Pliocene epochs. Associated evidence, in the form of clast abrasion (including striations and faceting) and bedrock erosion, is indicative of basal sliding and subglacial sediment deformation active at the ice–bed interface and wet-based temperate or polythermal regimes, prior to remobilisation. The evidence further suggests two local ice caps on James Ross Island during the warm periods, as well as ice-overriding by the Antarctic Peninsula Ice Sheet from the west and northwest." @default.
• W1986812122 created "2016-06-24" @default.
• W1986812122 creator A5003705002 @default.
• W1986812122 creator A5011307993 @default.
• W1986812122 creator A5016570822 @default.
• W1986812122 creator A5053096934 @default.
• W1986812122 creator A5059302618 @default.
• W1986812122 creator A5063745170 @default.
• W1986812122 creator A5075301331 @default.
• W1986812122 creator A5084057228 @default.
• W1986812122 date "2009-12-01" @default.
• W1986812122 modified "2023-10-02" @default.
• W1986812122 title "Neogene glacigenic debris flows on James Ross Island, northern Antarctic Peninsula, and their implications for regional climate history" @default.
• W1986812122 cites W1496988736 @default.
• W1986812122 cites W1964003614 @default.
• W1986812122 cites W1964388422 @default.
• W1986812122 cites W1967197022 @default.
• W1986812122 cites W1973388129 @default.
• W1986812122 cites W1974744238 @default.
• W1986812122 cites W1975414542 @default.
• W1986812122 cites W1976010033 @default.
• W1986812122 cites W1981477858 @default.
• W1986812122 cites W1983059016 @default.
• W1986812122 cites W1991470150 @default.
• W1986812122 cites W1996315917 @default.
• W1986812122 cites W2007931022 @default.
• W1986812122 cites W2017376314 @default.
• W1986812122 cites W2018374287 @default.
• W1986812122 cites W2025881432 @default.
• W1986812122 cites W2026229249 @default.
• W1986812122 cites W2026344766 @default.
• W1986812122 cites W2028672070 @default.
• W1986812122 cites W2028937593 @default.
• W1986812122 cites W2032997397 @default.
• W1986812122 cites W2035313077 @default.
• W1986812122 cites W2038374265 @default.
• W1986812122 cites W2044712975 @default.
• W1986812122 cites W2050560888 @default.
• W1986812122 cites W2053867039 @default.
• W1986812122 cites W2059296174 @default.
• W1986812122 cites W2060303663 @default.
• W1986812122 cites W2067409327 @default.
• W1986812122 cites W2077196666 @default.
• W1986812122 cites W2082046510 @default.
• W1986812122 cites W2085204337 @default.
• W1986812122 cites W2085216295 @default.
• W1986812122 cites W2089573312 @default.
• W1986812122 cites W2092690740 @default.
• W1986812122 cites W2093490381 @default.
• W1986812122 cites W2093617239 @default.
• W1986812122 cites W2093913502 @default.
• W1986812122 cites W2094917674 @default.
• W1986812122 cites W2097365464 @default.
• W1986812122 cites W2099549534 @default.
• W1986812122 cites W2113428544 @default.
• W1986812122 cites W2116085801 @default.
• W1986812122 cites W2116375428 @default.
• W1986812122 cites W2117876734 @default.
• W1986812122 cites W2120162798 @default.
• W1986812122 cites W2121679477 @default.
• W1986812122 cites W2126611807 @default.
• W1986812122 cites W2134337470 @default.
• W1986812122 cites W2136833741 @default.
• W1986812122 cites W2137556997 @default.
• W1986812122 cites W2143979263 @default.
• W1986812122 cites W2150386546 @default.
• W1986812122 cites W2151920552 @default.
• W1986812122 cites W2152050107 @default.
• W1986812122 cites W2152671517 @default.
• W1986812122 cites W2154886044 @default.
• W1986812122 cites W2162380464 @default.
• W1986812122 cites W2164252430 @default.
• W1986812122 cites W2164662095 @default.
• W1986812122 cites W2166890019 @default.
• W1986812122 cites W2167207811 @default.
• W1986812122 cites W2169939721 @default.
• W1986812122 cites W2255135957 @default.
• W1986812122 cites W2271335416 @default.
• W1986812122 cites W2477328449 @default.
• W1986812122 cites W2501409455 @default.
• W1986812122 cites W2576281025 @default.
• W1986812122 cites W4234727297 @default.
• W1986812122 cites W4237638850 @default.
• W1986812122 cites W4238706439 @default.
• W1986812122 cites W4239599104 @default.
• W1986812122 cites W4250239702 @default.
• W1986812122 doi "https://doi.org/10.1016/j.quascirev.2009.08.016" @default.
• W1986812122 hasPublicationYear "2009" @default.
• W1986812122 type Work @default.
• W1986812122 sameAs 1986812122 @default.
• W1986812122 citedByCount "30" @default.
• W1986812122 countsByYear W19868121222012 @default.
• W1986812122 countsByYear W19868121222013 @default.
• W1986812122 countsByYear W19868121222014 @default.
• W1986812122 countsByYear W19868121222015 @default.
• W1986812122 countsByYear W19868121222016 @default.
• W1986812122 countsByYear W19868121222017 @default.
• W1986812122 countsByYear W19868121222018 @default.

• next