Collaborative: Investigation of a new class of hydrothermal systems: The Lost City Hydrothermal Field: A Peridotite-hosted, Off-axis System at 30 degree N on the Mid-Atlantic Ridge
Collaborative: Investigation of a new class of hydrothermal systems: The Lost City Hydrothermal Field: A Peridotite-hosted, Off-axis System at 30 degree N on the Mid-Atlantic Ridge
批准号:
0136816
负责人:
Jeffrey Karson
金额:
$31.39万
依托单位:
依托单位国家:
美国
项目类别:
Continuing Grant
财政年份:
2003
资助国家:
美国
项目状态:
已结题
起止时间:
2003-03-01 至 2006-02-28
中文摘要
这是对最近发现的失落的城市喷口场地的调查,它位于大西洋中部山脊北纬30度的圆顶状的亚特兰蒂斯山丘上。与已知的所有海底热液气田不同的是,该气田位于1.5 Ma的地壳上,以陡峭的碳酸盐烟囱为主,并有明显的蛇纹岩橄榄岩出露。将进行详细的绘图和采样计划,以解决以下问题:重点关注喷口的构造和地质控制,喷口结构和流体的化学和同位素组成,微生物的指示和植物多样性,以及是否存在大型动物。
英文摘要
This is an investigation of the recently discovered Lost City Vent Field, atop the dome-like Atlantis Massif at 30 degrees north on the Mid-Atlantic Ridge. This field is different from all other known seafloor hydrothermal fields in that it is located on 1.5 Ma crust, is dominated by steep-sided carbonate chimneys, and is underlain by significiant exposures of serpentinized peridotite. A detailed mapping and sampling program will be conducted to address the following: the tectonic and geologic controls that focus venting, the chemical and isotopic compositions of the vent structures and fluids, the indicence and phylogentic diversity of microorganisms, and whether macrofauna exist.
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RAPID Investigation of Active Fissure Eruptions, Holuhraun, Iceland
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批准号:1505710
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项目类别:Standard Grant
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资助金额:$1.65万
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财政年份:2014
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负责人:Jeffrey Karson
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依托单位:
Rift Propagation, Transform Migration, and Microplate Tectonics in Iceland
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批准号:1153497
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项目类别:Standard Grant
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资助金额:$35.0万
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财政年份:2012
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负责人:Jeffrey Karson
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依托单位:
Structural control of hydrothermal flow: A comparison between the RIDGE2000 sites and the Iceland spreading centers
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批准号:0937393
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项目类别:Standard Grant
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资助金额:$15.94万
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财政年份:2009
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负责人:Jeffrey Karson
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依托单位:
Collaborative Research: Iceland Flexure Zones: Analogs for Mid-Ocean Ridge Spreading Centers
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批准号:0701422
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项目类别:Continuing Grant
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资助金额:$0.0万
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财政年份:2007
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负责人:Jeffrey Karson
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依托单位:
Collaborative Research: Iceland Flexure Zones: Analogs for Mid-Ocean Ridge Spreading Centers
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批准号:0426545
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项目类别:Continuing Grant
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资助金额:$31.69万
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财政年份:2004
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负责人:Jeffrey Karson
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依托单位:
Accomplishment Based Renewal: Geometry and Kinematics of Upper Crustal Construction at Fast- to Intermediate Rate Mid-Ocean Ridge Spreading Centers
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批准号:9907308
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项目类别:Continuing Grant
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资助金额:$34.29万
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财政年份:2000
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负责人:Jeffrey Karson
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依托单位:
Collaborative Research: Near-Bottom Geological and Geophysical Investigation of an 'Ocean Core Complex': Eastern Atlantis Ridge-Transform Intersection Massif
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批准号:9712430
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项目类别:Continuing Grant
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资助金额:$27.44万
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财政年份:2000
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负责人:Jeffrey Karson
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依托单位:
Laser Surface Mapping system for Quantitative Orientation and Morphologic Data from Alvin and ROVs
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批准号:9814147
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项目类别:Standard Grant
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资助金额:$18.63万
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财政年份:1998
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负责人:Jeffrey Karson
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依托单位:
JASON/MEDEA and Alvin Investigation of the Uppermost Oceanic Crust at Hess Deep
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批准号:9633725
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项目类别:Continuing Grant
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资助金额:$31.05万
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财政年份:1998
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负责人:Jeffrey Karson
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依托单位:
Geometry and Kinematics of Faulting and Dike Intrusion in the Tertiary East Greenland Rifted Margin
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批准号:9508250
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项目类别:Continuing Grant
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资助金额:$11.0万
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财政年份:1995
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负责人:Jeffrey Karson
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依托单位:
Collaborative Research: Integrated Geological Interpretation of Deep-Tow Sonar, Submersible, and Petrological Observations of the Upper and Lower Oceanic Crust
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批准号:9318731
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项目类别:Standard Grant
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资助金额:$8.68万
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财政年份:1994
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负责人:Jeffrey Karson
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依托单位:
Correlation of Geologic and Seismic Structures in the Southern MARK Area: Surface Manifestations of Normal Faulting on the Mid-Atlantic Ridge
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批准号:9202661
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项目类别:Continuing Grant
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资助金额:$36.0万
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财政年份:1993
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负责人:Jeffrey Karson
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依托单位:
Structure of Fast-Spread Oceanic Crust Exposed in the Walls of Hess Deep
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批准号:8912653
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项目类别:Continuing Grant
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资助金额:$9.36万
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财政年份:1990
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负责人:Jeffrey Karson
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依托单位:
Episodic Accretion on the Mid-Atlantic Ridge: Interpretationand Sampling of Crustal Sections from the Kane Transform Fault
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批准号:8920527
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项目类别:Standard Grant
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资助金额:$11.29万
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财政年份:1990
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负责人:Jeffrey Karson
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依托单位:
Upper Crustal Extension in the Turkana Rift: 3-D Geometry and Kinematics of Small-Magnitude Extension in East Africa
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批准号:8916351
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项目类别:Continuing Grant
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资助金额:$11.0万
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财政年份:1990
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负责人:Jeffrey Karson
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依托单位:
Combined Petrological, Geochemical, and Structural Study of Mid-Atlantic Ridge 23-24'N Latitude Using Alvin and Angus
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批准号:8603817
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项目类别:Standard Grant
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资助金额:$10.87万
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财政年份:1986
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负责人:Jeffrey Karson
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依托单位:
Submersible Investigation of the Clipperton Transform: Tectonic Manifestations of a Fast-Slipping Plate Boundary - Year 2
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批准号:8603819
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项目类别:Standard Grant
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资助金额:$3.63万
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财政年份:1986
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负责人:Jeffrey Karson
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依托单位:
Submersible Investigation of the Clipperton Transform: Petrologic and Tectonic Manifestations of a Fast-Slipping Plate Boundary
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批准号:8411979
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项目类别:Continuing Grant
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资助金额:$4.63万
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财政年份:1985
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负责人:Jeffrey Karson
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依托单位:
Deformation Microstructures in Mafic Rocks From the Oceanic Crust
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批准号:8214951
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项目类别:Standard Grant
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资助金额:$8.66万
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财政年份:1983
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负责人:Jeffrey Karson
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依托单位:
Geological, Petrological and Geochemical Study of the Ophiolitic Rocks of the Bay of Islands Region of Western Newfoundland
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批准号:8026445
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项目类别:Continuing Grant
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资助金额:$11.02万
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财政年份:1981
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负责人:Jeffrey Karson
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依托单位:
海外基金