Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019GL084881 |
Modern and Fossil Pockmarks in the New England Mud Patch: Implications for Submarine Groundwater Discharge on the Middle Shelf | |
Goff, John A. | |
2019-11-11 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2019 |
卷号 | 46期号:21页码:12213-12220 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Geophysical evidence is presented for the existence of modern and fossil pockmarks within the New England Mud Patch, an anomalous region of fine-grained deposition on the middle shelf south of Cape Cod, USA. Modern pockmarks, indicators of focused subsurface fluid flow, are observed as seafloor depressions up to 80-m wide and 1.2-m deep, with reflective centers evincing hard material. Probable fossil pockmarks are identified by predominantly u-shaped bright lenses within the sub-bottom data and have similar size and distribution as the seafloor pockmarks; they likely indicate long-term (>10 ka) persistence of episodic-focused fluid flow. Given the lack of seismic evidence for gas, these features are attributed to submarine groundwater discharge. Based on recent observations and modeling, it is suggested that submarine groundwater discharge is induced by salinity-driven convection cells associated with overpressured fluids, emplaced either by modern, shore-connected aquifers, or during Pleistocene glacial advances and retreats. |
英文关键词 | chirp bathymetry backscatter overpressured fluids salinity-driven convection submarine groundwater discharge |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000495496700001 |
WOS关键词 | FLUID-FLOW ; CONTINENTAL-SHELF ; NEW-JERSEY ; SEA-FLOOR ; SLOPE ; OVERPRESSURE ; ACCUMULATION ; PLEISTOCENE ; MORPHOLOGY ; SEDIMENTS |
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/224991 |
专题 | 环境与发展全球科技态势 |
作者单位 | Univ Texas Austin, Inst Geophys, Jackson Sch Geosci, Austin, TX 78712 USA |
推荐引用方式 GB/T 7714 | Goff, John A.. Modern and Fossil Pockmarks in the New England Mud Patch: Implications for Submarine Groundwater Discharge on the Middle Shelf[J]. GEOPHYSICAL RESEARCH LETTERS,2019,46(21):12213-12220. |
APA | Goff, John A..(2019).Modern and Fossil Pockmarks in the New England Mud Patch: Implications for Submarine Groundwater Discharge on the Middle Shelf.GEOPHYSICAL RESEARCH LETTERS,46(21),12213-12220. |
MLA | Goff, John A.."Modern and Fossil Pockmarks in the New England Mud Patch: Implications for Submarine Groundwater Discharge on the Middle Shelf".GEOPHYSICAL RESEARCH LETTERS 46.21(2019):12213-12220. |
条目包含的文件 | 条目无相关文件。 |
个性服务 |
推荐该条目 |
保存到收藏夹 |
查看访问统计 |
导出为Endnote文件 |
谷歌学术 |
谷歌学术中相似的文章 |
[Goff, John A.]的文章 |
百度学术 |
百度学术中相似的文章 |
[Goff, John A.]的文章 |
必应学术 |
必应学术中相似的文章 |
[Goff, John A.]的文章 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论