干旱区生态环境知识资源中心(Arid): Fluid sources and overpressures within the central Cascadia Subduction Zone revealed by a warm, high-flux seafloor seep

Arid

DOI	10.1126/sciadv.add6688
	Fluid sources and overpressures within the central Cascadia Subduction Zone revealed by a warm, high-flux seafloor seep
	Philip, Brendan T.; Solomon, Evan A.; Kelley, Deborah S.; Trehu, Anne M.; Whorley, Theresa L.; Roland, Emily; Tominaga, Masako; Collier, Robert W.
通讯作者	Philip, BT
来源期刊	SCIENCE ADVANCES
ISSN	2375-2548
出版年	2023
卷号	9 期号:4
英文摘要	Pythia's Oasis is a newly discovered seafloor seep on the Central Oregon segment of the Cascadia Subduction Zone, where focused venting emits highly altered fluids similar to 9 degrees C above the background temperature. The seep fluid chemistry is unique for Cascadia and includes extreme enrichment of boron and lithium and depletion of chloride, potassium, and magnesium. We conclude that the fluids are sourced from pore water compaction and mineral dehydration reactions with minimum source temperatures of 150 degrees to 250 degrees C, placing the source at or near the plate boundary offshore Central Oregon. Estimated fluid flow rates of 10 to 30 cm s(-1) are orders of magnitude higher than those estimated elsewhere along the margin and are likely driven by extreme overpressures along the plate boundary. Probable draining of the overpressured reservoir along the vertical Alvin Canyon Fault indicates the important role that such faults may play in the regulation of pore fluid pressure throughout the forearc in Central Cascadia.
类型	Article
语种	英语
开放获取类型	gold, Green Published
收录类别	SCI-E
WOS记录号	WOS:000934904500002
WOS关键词	BOTTOM SIMULATING REFLECTORS ; OREGON ACCRETIONARY PRISM ; METHANE HYDRATE DEPOSITS ; STRIKE-SLIP-FAULT ; COSTA-RICA ; OCEANIC-CRUST ; HEAT-FLOW ; LANDWARD VERGENCE ; STRUCTURAL TRENDS ; CONVERGENT MARGIN
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/2XILL650/398463
推荐引用方式 GB/T 7714	Philip, Brendan T.,Solomon, Evan A.,Kelley, Deborah S.,et al. Fluid sources and overpressures within the central Cascadia Subduction Zone revealed by a warm, high-flux seafloor seep[J],2023,9(4).
APA	Philip, Brendan T..,Solomon, Evan A..,Kelley, Deborah S..,Trehu, Anne M..,Whorley, Theresa L..,...&Collier, Robert W..(2023).Fluid sources and overpressures within the central Cascadia Subduction Zone revealed by a warm, high-flux seafloor seep.SCIENCE ADVANCES,9(4).
MLA	Philip, Brendan T.,et al."Fluid sources and overpressures within the central Cascadia Subduction Zone revealed by a warm, high-flux seafloor seep".SCIENCE ADVANCES 9.4(2023).