
	Where results make sense

Topic: Turbidite

In the News (Thu 24 Dec 09)

Northern Trust

Marvin Harrison

Peter Chernin

Gary Locke

Match Play

Penelope Cruz

Mickey Rourke

AR Rahman

Danny Boyle

Hugh Jackman

	Turbidite -- Facts, Info, and Encyclopedia article (Site not responding. Last check: 2007-11-06)
		Turbidites form as a result of (additional info and facts about turbidity current) turbidity currents, a form of turbulent, (Matter deposited by some natural process) sediment bearing (A solemn and dignified feeling) gravity current.
		They are comparable to (A slide of large masses of snow and ice and mud down a mountain) avalanches, moving due to the density excess provided by the suspended material, but travel under water.
		Lithified accumulations of these deposits may, in time, become (An organic compound containing only carbon and hydrogen) hydrocarbon reservoirs, and the (A slippery or viscous liquid or liquefiable substance not miscible with water) oil industry makes strenuous efforts to predict the location, overall shape and internal character of these sediment bodies.
	www.absoluteastronomy.com /encyclopedia/t/tu/turbidite.htm (139 words)

	Journal of the Geological Society: Distinguishing climatic and tectonic forcing of turbidite sedmentation, and the ...
		Turbidite bed frequency-size statistics show a power-law distribution, implying that during such periods (particularly NP 12), the depositional system temporarily reached a self-organized critical state.
		The turbidites were shed from the eastern termination of the early Bay of Biscay (Figs 1, 2d), where from Eocene time onward an extensive catchment system developed in the peri-Pyrenean domain (Plaziat 1981).
		Important data to discriminate between climatic and tectonic controls on the turbidite deposition are obtained from the thickness, mineralogy and carbon isotope composition of the interturbidite beds.
	www.findarticles.com /p/articles/mi_qa3721/is_199907/ai_n8852904 (1151 words)

	2000, Moslow
		Turbidite channels coalesce down-dip towards the base of slope and then grade into turbidite lobes b asinward.
		Turbidite channels are associated with significant lateral discontinuity along depositional strike due to cross-cutting but have lateral continuity along dispositional dip.
		Turbidite channel facies associations can be amalgamated to thicknesses of 30 m, due to synsedimentary tectonism within localized grabens or half-grabens.
	www.gcssepm.org /pubs/2000_ab_11.htm (388 words)

	INI Abstracts - Peter Talling (Site not responding. Last check: 2007-11-06)
		The term 'turbidite' is used to denote evidence of preferential settling of larger grains and 'layer-by-layer' aggradation of the bed.
		Although turbidite sandstone intervals dominate thicker beds in the correlated interval, three quarters of the beds (9 out of 12) also contain debrite intervals.
		This is the suppression of turbulence by a muddy fluid, and consequent transition to laminar plug-flow in the rear of the flow, as the flow decelerates during its final stages.
	www.newton.cam.ac.uk /programmes/GPF/Abstracts/talling.html (749 words)

	USGS Open File Report 99-157 (Site not responding. Last check: 2007-11-06)
		The primary objective of this phase of the project is to determine recurrence intervals of turbidites in Cascadia basin-floor channel systems and evaluate implications of this event record for the paleoseismic history of the Cascadia subduction zone.
		The interpreted turbidite sediments are color highlighted on the selected seismic sections to differentiate them from the typical deep sea sediments below and to the side of the turbidite pathways.
		Offset of the southwest channel wall is readily evident in views B and D. This apparent disruption complicates the turbidite history of the Mendocino pathway.
	geopubs.wr.usgs.gov /open-file/of99-157 (910 words)

	Solutions From The Field - Petroleum Systems of the Michigan Basin - A Look at Remaining and Undiscovered Oil and Gas ... (Site not responding. Last check: 2007-11-06)
		Hydrocarbon targets in turbidites require high-resolution seismic data, extensive processing, and knowledge of the depositional characteristics of turbidity flows and the types of deposits formed (architectural elements) to identify oil and gas prospects.
		Turbidites are defined geologically as clastic sediments transported beyond the shelf edge into deep water by sediment gravity flow processes and deposited on the continental slope and in the basin.
		Channel turbidite deposits have sharp erosional bases and fining up sequences that were confined within a depression on the sea floor at the time of deposition.
	www.pttc.org /solutions/sol_2004/539.htm (1901 words)

	Mapping Turbidite System Pathways on the Lousiana Continental Slope with GLORIA and Multibeam Bathymetry
		GLORIA sidescan sonar images in concert with multibeam bathymetry provide a detailed understanding of turbidite system pathways on the Louisiana Continental Slope, the filling of salt withdrawal basins by coarse-grained sediment, and the subsequent deformation of these pathways by movement of the underlying salt.
		Two turbidite systems were mapped; system A was traced from the seaward edge of a Pleistocene-aged delta to the rise, while system B was traced across part of the upper slope before it disappeared.
		Schematic summary of evolution of a basin influenced by turbidite sedimentation.
	coastalmap.marine.usgs.gov /regional/contusa/gomex/centgulf/lcs/aapg97 (787 words)

	Turbidite Evidence for Cascadia Megathrust Earthquakes
		The turbidite record strongly suggests the latter — coastal Washington and Oregon experienced strong coast-wide shaking typical of a large subduction zone earthquake.
		If the turbidites orignated at different times in the side channels, the main channel would record each separate turbidite event, The consistent number of turbidites in core samples from the side and main channels indicate that the turbidity currents were likely caused at the same time and by the same event.
		Radiocarbon dating of each turbidite in Adams' core samples show a recurrence interval of about 590 years, closely matching the interval of coastal subsidence observed in coastal Washington.
	www.pnsn.org /HAZARDS/CASCADIA/turbidite_record.html (506 words)

	Lewis Shale Project (Site not responding. Last check: 2007-11-06)
		Currently, one of the greatest challenges facing oil and gas professionals interested in deep-water turbidite reservoirs is that of quantifying the reservoir properties of these sandstones.
		The primary goal of this thesis research is to mitigate the problems associated with both the reservoir characterization of turbidite sandstones and the petrophysical analysis of thin-bedded deep-water reservoirs.
		Normalizing this high-resolution data to the conventional core analysis data and using petrophysical-modeling techniques should generate an accurate interpretation of the petrophysical properties of the turbidite reservoirs in the well.
	www.mines.edu /academic/geology/LewisShaleProject/project3.html (555 words)

	THRUST SYSTEMS IN TURBIDITE-DOMINATED ACCRETIONARY OROGENS: LACHLAN OROGEN, AUSTRALIA AS EXAMPLE (Site not responding. Last check: 2007-11-06)
		Thrust systems within turbidite-dominated accretionary orogens occur within turbidite, chert and oceanic crust (meta-basalt, gabbro, ultramafics) successions and have leading-imbricate fan geometry, with oceanic crust duplexes exhumed along the leading and frontal faults.
		Background metamorphism in the deformed turbidite wedges is greenschist to subgreenschist facies.
		Structural thickening of turbidite sediment wedges is via chevron-folding and thrusting, causing exhumation, subsequent erosion (sediment cannibilsation) with foredeep deposition ahead of the migrating thrust system.
	gsa.confex.com /gsa/2002AM/finalprogram/abstract_41841.htm (457 words)

	World Oil: 4-D seismic simulation of a complex turbidite sand
		All three reservoirs are overpressured turbidite sands, but K8 is the most complex, comprising a package of mid-fan sheet sands lapping onto a paled high to the east.
		Horizon interpretations on seismic sections are difficult, so computer-selected regions were grown from 4-D amplitude analysis and used to further constrain the reservoir oil chamber[4] which is shown along with the horizons, Fig.
		The K8 is interpreted as a mid-fan turbidite reservoir comprising high-porosity intertwined channel sands.
	www.findarticles.com /p/articles/mi_m3159/is_n9_v219/ai_21219400 (1263 words)

	OXIDATION FRONTS IN MADEIRA ABYSSAL PLAIN TURBIDITES: PERSISTENCE OF EARLY DIAGENETIC TRACE-ELEMENT ENRICHMENTS DURING ...
		The emplacement of organic-rich turbidite units on abyssal plains is commonly followed by the early diagenetic redistribution of redox-sensitive elements.
		This occurs only at the summit of the turbidite unit, where it is caused by the downward diffusion of seawater oxygen, which continues for as long as each turbidite is in diffusive contact with bottom waters.
		The known sequence of redox-sensitive element redistribution peaks around oxidation fronts in turbidites, derived from studies of conventional piston core material sampling the upper few tens of meters of Quaternary sediments on the MAP, is compared here with that in a single turbidite recovered at Site 950, and now buried to 230 mbsf.
	owen.nhm.ac.uk /odp/publications/157_SR/Abstract/32.HTM (413 words)

	THE WINDERMERE TURBIDITE SYSTEM: A WINDOW INTO THE NEOPROTEROZOIC DEEP-WATER WORLD (Site not responding. Last check: 2007-11-06)
		The Windermere turbidite system developed along the ancestral continental margin of the Pacific Ocean and overlies rift facies at the base of the Windermere Supergroup that host an older (Sturtian?) glacial deposit.
		The turbidite system has been correlated throughout the southern Canadian Cordillera on the basis of several through-going marker units, including a deep-water cap carbonate dated at circa 609 Ma and several deep-water carbonate units.
		The reconstructed size of the turbidite system is at least 160,000 km2, comparable in scale to modern passive margin turbidite systems such as the Amazon and Mississippi fans.
	gsa.confex.com /gsa/2003AM/finalprogram/abstract_64798.htm (450 words)

	Oilfield Glossary: Term 'turbidite'
		Sedimentary deposits formed by turbidity currents in deep water at the base of the continental slope and on the abyssal plain.
		Turbidites commonly show predictable changes in bedding from coarse layers at the bottom to finer laminations at the top, known as Bouma sequences, that result from different settling velocities of the particle sizes present.
		The high energy associated with turbidite deposition can result in destruction of earlier deposited layers by subsequent turbidity currents.
	www.glossary.oilfield.slb.com /Display.cfm?Term=turbidite (87 words)

	Comparison of Fluvial, Deep and Shallow Delta-Front Channels-Fills Builts by Lateral Accretion in the Montanana ... (Site not responding. Last check: 2007-11-06)
		In the Morillo turbidite system, outcrops revealed channelised sinuous turbidite channels with lateral accretion surfaces associated with a range of facies showing analogies with sinuous migrating deep-water channels complexes recognised with 3D-HR in the Tertiary of West Africa.
		In the shallow marine deltaic sediments of the Sobrabe Formation, sinuous “turbidite like” channels showing lateral accretion were also recognised and interpreted as a result of flood related hyperpycnal currents entering in the delta front (less than 50m).
		Lateral accretion surfaces occuring in the Morillo turbidite system, are the result of the deposition of successive turbidite currents forming individual isolated sandbodies or larger channel complexes, mostly made of F5 and F2 facies inbedded with thin-bedded overbank wedges.
	aapg.confex.com /aapg/da2004/techprogram/A86808.htm (354 words)

	Roger Slatt
		Roger M. Slatt is the Director of the School of Geology and Geophysics at University of Oklahoma (2000-).
		Slatt, R.M., Al-Siyabi, N., Vankirk, C.K., Williams, R.W., 1998, From geological characterization to reservoir simulation of a turbidite outcrop.
		Witton, E.M., Slatt, R.M., Hurley, N.F., Ward, W.B., Murphy, W., Orrange, J., Reischer, A., and Homann, H., 1999, Confined, unconfined, and thin-bedded turbidites and sandy debris flows, Lewis Shale, Wyoming, AAPG Intl.
	geology.ou.edu /slatt.html (2820 words)

	DUO - Digital utgivelse ved Universitetet i Oslo - Coarse-clastic turbidite sedimentation (Site not responding. Last check: 2007-11-06)
		The fan complex was deposited in the Neoproterozoic Hedmark rift basin close to a basin margin bordered by the Imsdalen Fault.
		The Imsdalen Submarine Fan Complex is divided into eleven fan systems, separated by erosional surfaces, interpreted as sequence boundaries, except for the boundary at the base of fan 6, interpreted to be a maximum fl ooding surface.
		Overall, the eleven fan systems form a turbidite succession that records a long history of aggradation to retrogradation, as shown by the fans 1 to 8, followed by a phase of marked progradation, displayed by the fans 9 to 11, from middle to lower, to upper fan positions.
	urn.nb.no /URN:NBN:no-9302 (425 words)

	Boggy's links to Turbidites
		An Introduction to the Analysis of Ancient Turbidite Basins from an Outcrop Perspective
		- Turbidite sedimentation of ancient rogenic belts are considered as closely related to that of marginal flood-dominated fluvio-deltaic systems.
		Turbidite Research at the Institute for Crustal Studies, University of California at Santa Barbara
	www.geologylinks.com /sedtur.html (109 words)

	UCDavis GEL 109 Sedimentary Structures (Site not responding. Last check: 2007-11-06)
		A small channel in a more proximal part of the turbidite fan
		Cross stratification in a channel fill in a subaqueous turbidite fan
		Mud clasts and pebbles in the base of a turbidite
	www-geology.ucdavis.edu /~GEL109/SedStructures/Turbidites.html (69 words)

	Energy Citations Database (ECD) - Energy and Energy-Related Bibliographic Citations (Site not responding. Last check: 2007-11-06)
		Energy Citations Database (ECD) Document #5866451 - Correlating organic facies and turbidite facies in a Hoh turbidite sequence (Miocene), Western Olympic Peninsula, Washington
		Availability information may be found in the Availability, Publisher, Research Organization, Resource Relation and/or Author (affiliation information) fields and/or via the "Full-text Availability" link.
		Correlating organic facies and turbidite facies in a Hoh turbidite sequence (Miocene), Western Olympic Peninsula, Washington
	www.osti.gov /energycitations/product.biblio.jsp?osti_id=5866451 (129 words)

	Amazon.ca: Books: Seismic Facies and Sedimentary Processes Of Submarine Fans and Turbidite Systems (Site not responding. Last check: 2007-11-06)
		Publisher: learn how customers can search inside this book.
		Use Your Account to view or change your orders
		Top of Page : Seismic Facies and Sedimentary Processes Of Submarine Fans and Turbidite Systems
	www.amazon.ca /exec/obidos/ASIN/0387974695 (179 words)

	submarine * Big Red Three Months Onboard... (Site not responding. Last check: 2007-11-06)
		The Hunley Story Journey of a Confederate Submarine.
		Seismic Facies and Sedimentary Processes of Submarine Fans and Turbidite Systems Frontiers in Sedimentary Geology.
		The Navy Times Book of Submarines A Political, Social, and Military History.
	www.decurio.de /decuuuusubmarine.html (956 words)

Try your search on: Qwika (all wikis)