Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1130/B31439.1 |
Stratigraphy and structure of the Eocene Memphis Sand above the eastern margin of the Reelfoot rift in Tennessee, Mississippi, and Arkansas, USA | |
Martin, Richard V.; Van Arsdale, Roy B. | |
2017-07-01 | |
发表期刊 | GEOLOGICAL SOCIETY OF AMERICA BULLETIN
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ISSN | 0016-7606 |
EISSN | 1943-2674 |
出版年 | 2017 |
卷号 | 129 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | In total, 1249 geophysical well logs were interpreted to map the stratigraphy and structure of the Eocene Memphis Sand in west Tennessee, northwest Mississippi, and Crittenden County, Arkansas, where it overlies the southeastern margin of the Reelfoot rift. The Memphis Sand is a 300-m-thick reworked fluvial sand deposited on a low-relief subsiding plain with limited accommodation space. The Memphis Sand has experienced syn-and postdepositional faulting of four types in the region. (1) West-trending grabens were active during Eocene Claiborne deposition. These grabens also appear to control modern drainage and thus may extend to the surface. (2) The similar to N33 degrees E Shelby faults pass through Shelby County, Tennessee, into northwest Mississippi and extend to or near the surface. They were right-lateral normal faults during Eocene Memphis Sand deposition, but they became inverted reverse faults in the late Eocene. (3) The similar to N67 degrees Estriking Gibson faults are high-angle normal and reverse faults with a component of rightlateral strike slip. These faults were active during Memphis Sand through lower Cockfield deposition north of the Hatchie graben and appear to be due to faulting above an outboard fault of the Reelfoot rift. (4) The similar to N43 degrees E-striking Lauderdale faults are highangle normal and reverse faults that reflect right-lateral strike-slip reactivation of the southeastern margin of the Reelfoot rift. The structure and stratigraphy revealed in this mapping indicate that the geology of the Memphis Sand is more complex than previously recognized. Faulting of the Memphis Sand and overlying sediments reveals potentially seismogenic faults in western Tennessee, eastern Arkansas, and northwestern Mississippi. This study provides fundamental data for future groundwater modeling and seismic hazard analysis. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000405373200012 |
WOS关键词 | MADRID SEISMIC ZONE ; CENTRAL UNITED-STATES ; STABLE CONTINENTAL REGIONS ; QUATERNARY DEFORMATION ; NORTHERN MISSISSIPPI ; RIVER VALLEY ; PREHISTORIC EARTHQUAKES ; SHELBY COUNTY ; EMBAYMENT ; FAULT |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/24823 |
专题 | 地球科学 |
作者单位 | Univ Memphis, Dept Earth Sci, Memphis, TN 38152 USA |
推荐引用方式 GB/T 7714 | Martin, Richard V.,Van Arsdale, Roy B.. Stratigraphy and structure of the Eocene Memphis Sand above the eastern margin of the Reelfoot rift in Tennessee, Mississippi, and Arkansas, USA[J]. GEOLOGICAL SOCIETY OF AMERICA BULLETIN,2017,129. |
APA | Martin, Richard V.,&Van Arsdale, Roy B..(2017).Stratigraphy and structure of the Eocene Memphis Sand above the eastern margin of the Reelfoot rift in Tennessee, Mississippi, and Arkansas, USA.GEOLOGICAL SOCIETY OF AMERICA BULLETIN,129. |
MLA | Martin, Richard V.,et al."Stratigraphy and structure of the Eocene Memphis Sand above the eastern margin of the Reelfoot rift in Tennessee, Mississippi, and Arkansas, USA".GEOLOGICAL SOCIETY OF AMERICA BULLETIN 129(2017). |
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