干旱区生态环境知识资源中心(Arid): Cold seep formation from salt diapir-controlled deep biosphere oases

Arid

DOI	10.1073/pnas.2316878121
	Cold seep formation from salt diapir-controlled deep biosphere oases
	Chowdhury, Anirban; Ventura, Gregory T.; Owino, Yaisa; Lalk, Ellen J.; Macadam, Natasha; Dooma, John M.; Ono, Shuhei; Fowler, Martin; Macdonald, Adam; Bennett, Robbie; Macrae, R. Andrew; Hubert, Casey R. J.; Bentley, Jeremy N.; Kerr, Mitchell J.
通讯作者	Ventura, GT
来源期刊	PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
ISSN	0027-8424
EISSN	1091-6490
出版年	2024
卷号	121 期号:12
英文摘要	Deep sea cold seeps are sites where hydrogen sulfide, methane, and other hydrocarbon - rich fluids vent from the ocean floor. They are an important component of Earth's carbon cycle in which subsurface hydrocarbons form the energy source for highly diverse benthic micro- and macro - fauna in what is otherwise vast and spartan sea scape. Passive continental margin cold seeps are typically attributed to the migration of hydrocarbons generated from deeply buried source rocks. Many of these seeps occur over salt tectonic provinces, where the movement of salt generates complex fault systems that can enable fluid migration or create seals and traps associated with reservoir formation. The elevated advective heat transport of the salt also produces a chimney effect directly over these structures. Here, we provide geophysical and geochemical evidence that the salt chimney effect in conjunction with diapiric faulting drives a subsurface groundwater circulation system that brings dissolved inorganic carbon, nutrient - rich deep basinal fluids, and potentially overlying seawater onto the crests of deeply buried salt diapirs. The mobilized fluids fuel methanogenic archaea locally enhancing the deep biosphere. The resulting elevated biogenic methane production, alongside the upward heat- driven fluid transport, represents a previously unrecognized mechanism of cold seep formation and regulation.
英文关键词	cold seep deep biosphere diapir methanogenesis methane
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001207876800003
WOS关键词	THERMAL-CONDUCTIVITY ; METHANE ISOTOPOLOGUE ; MICROBIAL-PRODUCTION ; ISOTOPE ; GAS ; OXIDATION ; EQUILIBRIUM ; TEMPERATURE ; MATURATION ; SIGNATURES
WOS类目	Multidisciplinary Sciences
WOS研究方向	Science & Technology - Other Topics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/405227
推荐引用方式 GB/T 7714	Chowdhury, Anirban,Ventura, Gregory T.,Owino, Yaisa,et al. Cold seep formation from salt diapir-controlled deep biosphere oases[J],2024,121(12).
APA	Chowdhury, Anirban.,Ventura, Gregory T..,Owino, Yaisa.,Lalk, Ellen J..,Macadam, Natasha.,...&Kerr, Mitchell J..(2024).Cold seep formation from salt diapir-controlled deep biosphere oases.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,121(12).
MLA	Chowdhury, Anirban,et al."Cold seep formation from salt diapir-controlled deep biosphere oases".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 121.12(2024).