Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1130/B31440.1 |
High-resolution, millennial-scale patterns of bed compensation on a sand-rich intraslope submarine fan, western Niger Delta slope | |
Jobe, Zane R.1; 39;Byrne, Ciaran2 | |
2017 | |
发表期刊 | GEOLOGICAL SOCIETY OF AMERICA BULLETIN |
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; Italy |
英文摘要 | Near-seafloor core and seismic reflection-data from the western Niger Delta continental slope document the facies, architecture, and evolution of submarine channel and intra-slope submarine fan deposits. The submarine channel enters an 8-km-long by 8-km-wide intraslope basin, where more than 100 m of deposits form an intraslope submarine fan. Lobe deposits in the intraslope submarine fan show no significant downslope trend in sand presence or grain size, indicating that flows were bypassing sediment through the basin. This unique data set indicates that intra-slope lobe deposits may have more sand-rich facies near lobe edges than predicted by traditional lobe facies models, and that thickness patterns in intraslope submarine fans do not necessarily correlate with sand presence and/or quality. Core and radiocarbon age data indicate that sand beds southward during the late Pleistocene, resulting in the compensation of at least two lobe elements. The youngest lobe element is well characterized by core data and is sand rich, similar to 2 km wide x 6 km long, and > 1 m thick and was deposited rapidly over similar to 4000 yr, from 18 to 14 ka. Sand beds forming an earlier lobe element were deposited on the northern part of the fan from ca. 25 to 18 ka. Seafloor geomorphology and amplitudes from seismic reflection data confirm the location and age of these two compensating lobe elements. A third compensation event would have shifted sand deposition back to the northern part of the fan, but sediment supply was interrupted by rapid sea-level rise during Meltwater Pulse 1-A at ca. 14 ka, resulting in abandonment of the depositional system. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000390988400002 |
WOS关键词 | TURBIDITY CURRENTS ; STRATIGRAPHIC EVOLUTION ; CONTINENTAL-MARGIN ; SIGNAL PROPAGATION ; GROWTH-PATTERNS ; TIME-SCALES ; ARCHITECTURE ; DEPOSITS ; CALIFORNIA ; SYSTEMS |
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/24597 |
专题 | 地球科学 |
作者单位 | 1.Shell Int Explorat & Prod Inc, Houston, TX 77082 USA; 2.Shell Italia Explorat & Prod Inc, I-00144 Rome, Italy; 3.Texas A&M Univ, Dept Oceanog, College Stn, TX 77840 USA; 4.Shell Explorat & Prod Co, Houston, TX 77079 USA; 5.CarTerra LLC, 13607 Pinerock Lane, Houston, TX 77079 USA; 6.Colorado Sch Mines, Dept Geol, Golden, CO 80401 USA; 7.Chevron Energy Technol Co, Houston, TX 77002 USA |
推荐引用方式 GB/T 7714 | Jobe, Zane R.,39;Byrne, Ciaran. High-resolution, millennial-scale patterns of bed compensation on a sand-rich intraslope submarine fan, western Niger Delta slope[J]. GEOLOGICAL SOCIETY OF AMERICA BULLETIN,2017,129. |
APA | Jobe, Zane R.,&39;Byrne, Ciaran.(2017).High-resolution, millennial-scale patterns of bed compensation on a sand-rich intraslope submarine fan, western Niger Delta slope.GEOLOGICAL SOCIETY OF AMERICA BULLETIN,129. |
MLA | Jobe, Zane R.,et al."High-resolution, millennial-scale patterns of bed compensation on a sand-rich intraslope submarine fan, western Niger Delta slope".GEOLOGICAL SOCIETY OF AMERICA BULLETIN 129(2017). |
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