Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1306/05061918197 |
Onshore-offshore correlations of Cretaceous fluvial-deltaic sequences, southern Baltimore Canyon trough | |
Schmelz, William J.1,2; Miller, Kenneth G.1,2; Mountain, Gregory S.1,2; Browning, James, V1,2; Baldwin, Kimberly E.1,2 | |
2020-02-15 | |
发表期刊 | AAPG BULLETIN |
ISSN | 0149-1423 |
EISSN | 1558-9153 |
出版年 | 2020 |
卷号 | 104期号:2页码:411-448 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | We evaluate Cretaceous depositional sequences on approximately 4400 km (similar to 2700 mi) of newly released multichannel seismic profiles and five wells on the continental shelf in the southern Baltimore Canyon trough and tie the data to three wells drilled onshore in the Maryland coastal plain. Seismic geometries coupled with facies and biostratigraphy from the wells are used to delineate mid-Cretaceous (Aptian-Turonian) depositional sequences and paleogeography. Beneath these sequences, 400-1000 m (1300-3300 ft) of Lower Cretaceous sedimentary rocks underlie the modern shelf. They thicken along strike to the southwest, implying a southern sediment source. Aptian to Cenomanian sediments were deposited in shelf to nearshore settings. A landward movement of the depocenter and a shift toward facies indicative of deeper paleodepths marks a 10(7)-yr mid-Cretaceous transgression, within which we identify five sequences. A composite maximum flooding surface (MFS) within the uppermost of these retrogradational units is associated with the Cenomanian-Turonian boundary and ocean anoxic event 2. Shingled, lower Turonian seismic reflections prograde across the outer shelf, downlapping onto the composite MFS, and are truncated by a mid-Turonian sequence boundary. The Upper Cretaceous section thickens seaward and along strike to the northeast, implying a northern source and little Late Cretaceous accommodation beneath the modern shelf. Mid-Cretaceous strata offshore Maryland are likely sand-prone, considering their proximity to the correlative fluvial facies of the onshore Potomac Group. These potential reservoir sands are capped by regional confining units generated by 10(7)-yr global mean sea-level flooding events and are excellent targets for supercritical carbon storage. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000514550900008 |
WOS关键词 | NEW-JERSEY TRANSECT ; GLOBAL SEA-LEVEL ; NORTH-ATLANTIC ; COASTAL-PLAIN ; STRATIGRAPHIC FRAMEWORK ; DEPOSITIONAL HISTORY ; DYNAMIC TOPOGRAPHY ; MIOCENE SEQUENCES ; EVOLUTION ; SUBSIDENCE |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
URL | 查看原文 |
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/248751 |
专题 | 地球科学 |
作者单位 | 1.Rutgers State Univ, Dept Earth & Planetary Sci, Piscataway, NJ 08854 USA; 2.Rutgers State Univ, Inst Earth Ocean & Atmospher Sci, Piscataway, NJ 08854 USA |
推荐引用方式 GB/T 7714 | Schmelz, William J.,Miller, Kenneth G.,Mountain, Gregory S.,et al. Onshore-offshore correlations of Cretaceous fluvial-deltaic sequences, southern Baltimore Canyon trough[J]. AAPG BULLETIN,2020,104(2):411-448. |
APA | Schmelz, William J.,Miller, Kenneth G.,Mountain, Gregory S.,Browning, James, V,&Baldwin, Kimberly E..(2020).Onshore-offshore correlations of Cretaceous fluvial-deltaic sequences, southern Baltimore Canyon trough.AAPG BULLETIN,104(2),411-448. |
MLA | Schmelz, William J.,et al."Onshore-offshore correlations of Cretaceous fluvial-deltaic sequences, southern Baltimore Canyon trough".AAPG BULLETIN 104.2(2020):411-448. |
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