By Dorrik A. V. Stow
Contourites are a common yet poorly identified team of sediments associated with the motion of strong backside currents in deep water. even though we all know they're particularly universal alongside continental margins and during oceanic gateways, they've been surrounded by means of the talk given that they have been first famous within the early Sixties. the place thoroughly famous and decoded they could offer one of many keys to our greater realizing of backside water move and of the ocean-climate hyperlink. they're a part of the spectrum of deposits that confronts the oil as exploration strikes into gradually better water depths. This memoir is a crucial consequence of the overseas Geological Correlation undertaking 432 on backside Currents, Contourites and Paleocirculation. It comprises 30 papers related to over seventy five key scientists from worldwide. Following an introductory cutting-edge paper by means of the editors, there are 25 separate case reviews on glossy drifts and 4 on historic contourite sequence. This quantity is devoted to the reminiscence of Charlie Hollister (1936-1999), one of many founding fathers and pioneers of contourite examine. additionally to be had: monetary and Palaeoceanographic importance of Contourite Deposits - exact e-book No 276 - ISBN 9781862392267 3D Seismic expertise - Geological Society Memoirs M0029 - ISBN 9781862391512 The Geological Society of LondonFounded in 1807, the Geological Society of London is the oldest geological society on the planet, and one of many greatest publishers within the Earth sciences.The Society publishes quite a lot of high quality peer-reviewed titles for lecturers and execs operating within the geosciences, and enjoys an enviable foreign popularity for the standard of its work.The many parts within which we put up in include:-Petroleum geology-Tectonics, structural geology and geodynamics-Stratigraphy, sedimentology and paleontology-Volcanology, magmatic experiences and geochemistry-Remote sensing-History of geology-Regional geology courses
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Additional resources for Deep-water contourite systems: modern drifts and ancient series, seismic and sedimentary characteristics
8°C than in the rest of the deep-water column, and this gradient marks the transition with overlying North Atlantic Deep Water (NADW). Water masses over the GAOR are part of the deep current system, classically termed the Western Boundary Undercurrent (WBUC), that flows from north to south along the continental margin of eastern North America (Fig. 10). Shallower currents in this system (c. 3000 to 4900 m depths) move NADW derived largely from the Norwegian Sea, but deeper currents contain an increasing component of AABW.
R. (eds) Deep-Water Contourite Systems: Modern Drifts and Ancient Series, Seismic and Sedimentary Characteristics. Geological Society, London, Memoirs, 22, 39-55. 00 © The Geological Society of London 2002. 39 Fig. 1. Bathymetry of the Greater Antilles Outer Ridge and vicinity (from Tucholke et al. 1973). The outer ridge extends east-west north of the Puerto Rico Trench and to the NW between Silver Abyssal Plain and Vema Gap. Contours are in corrected metres. Fig. 2. Seismic reflection profile extending north-south across the Greater Antilles Outer Ridge to the southernmost Nares Abyssal Plain along 62°52'W, between 20°13'N and 22°04'N (R/V Conrad Cruise 8).
1985. Sedimentology and stratigraphy of box cores from the HEBBLE site on the Nova Scotian Continental Rise. Marine Geology, 66, 59-89. McCAVE, I. N. 1988. Biological pumping upwards of the coarse fraction of deep-sea sediments. Journal of Sedimentary Petrology, 58, 148–158. McCAVE, I. N. & SWIFT, S. A. 1976. A physical model for the rate of deposition of fine-grained sediment in the deep sea. Geological Society of America Bulletin, 87, 541-546. MCCAVE, I. N, HOLLISTER, C. , DEMASTER, D. , NITTROUER, C.
Deep-water contourite systems: modern drifts and ancient series, seismic and sedimentary characteristics by Dorrik A. V. Stow