DOI: 10.1306/10171212101
Scopus记录号: 2-s2.0-84878183471
论文题名: Modem internal waves and internal tides along oceanic pycnoclines: Challenges and implications for ancient deep-marine baroclinic sands
作者: Shanmugam G.
刊名: AAPG Bulletin
ISSN: 0149-1681
EISSN: 1558-9411
出版年: 2013
发表日期: 2013
卷: 97, 期: 5 起始页码: 799
结束页码: 843
语种: 英语
Scopus关键词: Baroclinic currents
; Continental slope
; Internal solitary waves
; Mid-ocean ridges
; Petroleum exploration
; Potential reservoir
; Submarine canyon
; Tidal frequencies
; Floors
; Modems
; Solitons
; Submarine geology
; Submarines
; Surface waves
; Tides
; Water waves
; amplitude
; baroclinic wave
; continental slope
; contourite
; deep sea
; deep-sea sediment
; gravity wave
; guyot
; hydrocarbon exploration
; internal tide
; internal wave
; mid-ocean ridge
; pycnocline
; seafloor
; solitary wave
; submarine canyon
; submarine fan
; surface wave
; turbidite
; Arctic Ocean
; Atlantic Ocean
; Indian Ocean
; Pacific Ocean
; Southern Ocean
Scopus学科分类: Energy
; Earth and Planetary Sciences
英文摘要: Thus far, the subject of deep-marine sands emplaced by baroclinic currents associated with internal waves and internal tides as potential reservoirs has remained an alien topic in petroleum exploration. Internal waves are gravity waves that oscillate along oceanic pycnoclines. Internal tides are internal waves with a tidal frequency. Internal solitary waves (i.e., solitons), the most common type, are commonly generated near the shelf edge (100-200 m [328-656 ft] in bathymetry) and in the deep ocean over areas of sea-floor irregularities, such as mid-ocean ridges, seamounts, and guyots. Empirical data from 51 locations in the Atlantic, Pacific, Indian, Arctic, and Antarctic oceans reveal that internal solitary waves travel in packets. Internal waves commonly exhibit (1) higher wave amplitudes (5-50 m [16-164 ft]) than surface waves (<2 m [6.56 ft]), (2) longer wavelengths (0.5-15 km [0.31-9 mi]) than surface waves (100 m [328 ft]), (3) longer wave periods (5-50 min) than surface waves (9-10 s), and (4) higher wave speeds (0.5-2 m s-1 [1.64-6.56 ft s-1]) than surface waves (25 cm s-1 [10 in. s-1]). Maximum speeds of 48 cm s-1 (19 in. s-1) for baroclinic currents were measured on guyots. However, core-based sedimentologic studies of modem sediments emplaced by baroclinic currents on continental slopes, in submarine canyons, and on submarine guyots are lacking. No cogent sedimentologic or seismic criteria exist for distinguishing ancient counterparts. Outcrop-based facies models of these deposits are untenable. Therefore, potential exists for misinterpreting deep-marine baroclinic sands as turbidites, contourites, basin-floor fans, and others. Economic risks associated with such misinterpretations could be real. © 2013. The American Association of Petroleum Geologists. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84878183471&doi=10.1306%2f10171212101&partnerID=40&md5=8d95f1c66ef8365800d0573070ecce40
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/13251
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:
Shanmugam G.. Modem internal waves and internal tides along oceanic pycnoclines: Challenges and implications for ancient deep-marine baroclinic sands[J]. AAPG Bulletin,2013-01-01,97(5)