Matches in SemOpenAlex for { <https://semopenalex.org/work/W2371387128> ?p ?o ?g. }
Showing items 1 to 83 of
83
with 100 items per page.
- W2371387128 abstract "The anomalous distribution of the gases in headspace of shallow sediments could be applied as an indicator to explore whether there are gas hydrate accumulations underneath.Comprehensive analyses of hydrocarbon gas composition and isotopic composition of methane in headspace gas in shallow sediments and related drilling cores in the Shenhu area are studied in this paper.Results show that CH4 is the major component of gases from the total 291 samples 1 mbsf(bsf,below sea floor) with trace C2H6 and C3H8,and the normalized concentrations of CH4 range from 2.49 to 77.23 μL/kg with an average value of 15.22 μL/kg.CH4 concentration from 12 anomalies were determined using tendency analysis method,and they extend in a NE direction as a whole,that is obviously controlled by NE trend fractures.The δ13C values of CH4 from 14 headspace gas samples from Sites 4PC and 23PC range from-74.3‰ to-46.2‰ with an average value of-60.9‰(PDB),and the ratios of C1/(C2+C3) range from 5.78 to 49.45 with an average of 16.23.This indicates that hydrocarbon gases of those samples are mainly microbial gas with small fraction of thermogenic gas.Isotopic anaylses were applied to 4 headspace gas samples collected from the drilling cores.It is found that δ13C and δD values of CH4 are-62.2‰ to-54.1‰(PDB) and-225‰ to-180‰(SMOW),respectively,and the ratios of C1/(C2+C3) was ranging from 575 to 1 668,suggesting that CH4 seems to be microbial gas or mixed gases with microbial gas dominating,and CH4 was mainly generated from microbial CO2 reduction and there is a little contribution from thermogenic gas.Our study indicates that the headspace hydrocarbon gases in shallow sediments were from gas hydrates,hydrocarbon source rocks or gas accumulations underneath.The hydrocarbon gases migrated upward along faults and diapir structures.Hydrocarbon gases originated from the dissociation of gas hydrates are mainly microbial gas,and those from hydrocarbon source rocks or gas accumulations are thermogenic gases in origin." @default.
- W2371387128 created "2016-06-24" @default.
- W2371387128 creator A5073411736 @default.
- W2371387128 date "2011-01-01" @default.
- W2371387128 modified "2023-09-22" @default.
- W2371387128 title "GEOCHEMICAL CHARACTERISTICS OF HYDROCARBON GASES IN SEDIMENTS IN SHENHU AREA,THE NORTHERN SOUTH CHINA SEA" @default.
- W2371387128 hasPublicationYear "2011" @default.
- W2371387128 type Work @default.
- W2371387128 sameAs 2371387128 @default.
- W2371387128 citedByCount "0" @default.
- W2371387128 crossrefType "journal-article" @default.
- W2371387128 hasAuthorship W2371387128A5073411736 @default.
- W2371387128 hasConcept C100402318 @default.
- W2371387128 hasConcept C107872376 @default.
- W2371387128 hasConcept C121332964 @default.
- W2371387128 hasConcept C127313418 @default.
- W2371387128 hasConcept C156398188 @default.
- W2371387128 hasConcept C158787203 @default.
- W2371387128 hasConcept C17409809 @default.
- W2371387128 hasConcept C175721412 @default.
- W2371387128 hasConcept C178790620 @default.
- W2371387128 hasConcept C185059815 @default.
- W2371387128 hasConcept C185592680 @default.
- W2371387128 hasConcept C191897082 @default.
- W2371387128 hasConcept C192562407 @default.
- W2371387128 hasConcept C199289684 @default.
- W2371387128 hasConcept C22117777 @default.
- W2371387128 hasConcept C25197100 @default.
- W2371387128 hasConcept C2777207669 @default.
- W2371387128 hasConcept C2781060337 @default.
- W2371387128 hasConcept C516920438 @default.
- W2371387128 hasConcept C59427239 @default.
- W2371387128 hasConcept C62520636 @default.
- W2371387128 hasConcept C97355855 @default.
- W2371387128 hasConceptScore W2371387128C100402318 @default.
- W2371387128 hasConceptScore W2371387128C107872376 @default.
- W2371387128 hasConceptScore W2371387128C121332964 @default.
- W2371387128 hasConceptScore W2371387128C127313418 @default.
- W2371387128 hasConceptScore W2371387128C156398188 @default.
- W2371387128 hasConceptScore W2371387128C158787203 @default.
- W2371387128 hasConceptScore W2371387128C17409809 @default.
- W2371387128 hasConceptScore W2371387128C175721412 @default.
- W2371387128 hasConceptScore W2371387128C178790620 @default.
- W2371387128 hasConceptScore W2371387128C185059815 @default.
- W2371387128 hasConceptScore W2371387128C185592680 @default.
- W2371387128 hasConceptScore W2371387128C191897082 @default.
- W2371387128 hasConceptScore W2371387128C192562407 @default.
- W2371387128 hasConceptScore W2371387128C199289684 @default.
- W2371387128 hasConceptScore W2371387128C22117777 @default.
- W2371387128 hasConceptScore W2371387128C25197100 @default.
- W2371387128 hasConceptScore W2371387128C2777207669 @default.
- W2371387128 hasConceptScore W2371387128C2781060337 @default.
- W2371387128 hasConceptScore W2371387128C516920438 @default.
- W2371387128 hasConceptScore W2371387128C59427239 @default.
- W2371387128 hasConceptScore W2371387128C62520636 @default.
- W2371387128 hasConceptScore W2371387128C97355855 @default.
- W2371387128 hasLocation W23713871281 @default.
- W2371387128 hasOpenAccess W2371387128 @default.
- W2371387128 hasPrimaryLocation W23713871281 @default.
- W2371387128 hasRelatedWork W1534080628 @default.
- W2371387128 hasRelatedWork W1968102010 @default.
- W2371387128 hasRelatedWork W1969844110 @default.
- W2371387128 hasRelatedWork W2008842922 @default.
- W2371387128 hasRelatedWork W2026883887 @default.
- W2371387128 hasRelatedWork W2047059044 @default.
- W2371387128 hasRelatedWork W2052922889 @default.
- W2371387128 hasRelatedWork W2064332014 @default.
- W2371387128 hasRelatedWork W2156412639 @default.
- W2371387128 hasRelatedWork W2183799534 @default.
- W2371387128 hasRelatedWork W2272979381 @default.
- W2371387128 hasRelatedWork W2354576687 @default.
- W2371387128 hasRelatedWork W2361097994 @default.
- W2371387128 hasRelatedWork W2364392854 @default.
- W2371387128 hasRelatedWork W2371981173 @default.
- W2371387128 hasRelatedWork W2770156446 @default.
- W2371387128 hasRelatedWork W2792835388 @default.
- W2371387128 hasRelatedWork W2959736198 @default.
- W2371387128 hasRelatedWork W3003353086 @default.
- W2371387128 hasRelatedWork W3045181819 @default.
- W2371387128 isParatext "false" @default.
- W2371387128 isRetracted "false" @default.
- W2371387128 magId "2371387128" @default.
- W2371387128 workType "article" @default.