| DOI: | 10.1306/04011312073
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| Scopus记录号: | 2-s2.0-84887239390
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| 论文题名: | Jurassic evolution of the Gulf of Mexico salt basin |
| 作者: | Hudec M.R.; Norton I.O.; Jackson M.P.A.; Peel F.J.
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| 刊名: | AAPG Bulletin
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| ISSN: | 0149-1643
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| EISSN: | 1558-9373
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| 出版年: | 2013
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| 发表日期: | 2013
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| 卷: | 97, 期:10 | | 起始页码: | 1683
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| 结束页码: | 1710
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| 语种: | 英语
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| Scopus关键词: | Basement ramps
; Crustal stretching
; Gulf of Mexico
; Late Jurassic
; Northern Gulf of Mexico
; Oceanic crust
; Salt deposition
; Seafloor spreading
; Buildings
; Sea level
; Seismic response
; Seismic waves
; Tectonics
; basin
; Callovian
; evolution
; Jurassic
; oceanic crust
; overburden
; rifting
; salt tectonics
; sea level
; seismic data
; Atlantic Ocean
; Gulf of Mexico
; Mexico [North America]
; Walker Ridge
; Yucatan
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| Scopus学科分类: | Energy
; Earth and Planetary Sciences
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| 英文摘要: | We present a new hypothesis for the Jurassic plate-tectonic evolution of the Gulf of Mexico basin and discuss how this evolution influenced Jurassic salt tectonics. Four interpretations, some based on new data, constrain the hypothesis. First, the limit of normal oceanic crust coincides with a landward-dipping basement ramp near the seaward end of the salt basin, which has been mapped on seismic data. Second, the deep salt in the deep-water Gulf of Mexico can be separated into provinces on the basis of position with respect to this ramp. Third, paleodepths in the postsalt sequence indicate that salt filled the Gulf of Mexico salt basin to near sea level. Fourth, seismic data show that postsalt sediments in the central Louann and the Yucatan salt basins exhibit large magnitudes of Late Jurassic salt-detached extension not balanced by equivalent salt-detached shortening. In our hypothesis, Callovian salt was deposited in pre-existing crustal depressions on hyperextended continental and transitional crust. After salt deposition ended, rifting continued for another 7 to 12 m.y. before sea-floor spreading began. During this phase of postsalt crustal stretching, the salt and its overburden were extended by 100 to 250 km (62-155 mi), depending on location. Sea-floor spreading divided the northern Gulf of Mexico into two segments, separated by the northwest-trending Brazos transform. The eastern segment opened from east to west, leaving the Walker Ridge salient in the center of the basin as the final area to break apart. In some areas, salt flowed seaward onto new oceanic crust, first con-cordantly over the basement as a parautochthonous province, then climbing up over stratigraphically younger strata as an allochthonous province. Copyright © 2013, The American Association of Petroleum Geologists. All rights reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84887239390&doi=10.1306%2f04011312073&partnerID=40&md5=f02b7758857b6140868a77ac8ed93de6
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/13213
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| Appears in Collections: | 过去全球变化的重建
影响、适应和脆弱性
科学计划与规划
气候变化与战略
全球变化的国际研究计划
气候减缓与适应
气候变化事实与影响
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| Recommended Citation: | |
Hudec M.R.,Norton I.O.,Jackson M.P.A.,et al. Jurassic evolution of the Gulf of Mexico salt basin[J]. AAPG Bulletin,2013-01-01,97(10)
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