Results 211 to 220 of about 125,700 (243)
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Rift, Magmatic Activization, and Continental Margin Regimes
1980The rift regime is similar to the orogenic and is sometimes considered a variety of the latter. A number of specific features, however, lead us to classify it in an autonomous category.
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Gas Hydrates at Two Sites of an Active Continental Margin
Proceedings of SPE California Regional Meeting, 1985ABSTRACT Sediment containing gas hydrates from two distant Deep Sea Drilling Project sites (565 and 568), located about 670 km apart or the landward flank of the Middle America Trench, was studied to determine the geochemical conditions that characterize the occurrence of gas hydrates.
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Phanerozoic gold deposits in tectonically active continental margins
1991Phanerozoic gold deposits currently account for approximately 25% of the non-communist world’s annual gold production or 53% of annual production, if the deposits of the Witwatersrand are excluded (data from Woodall, 1988). With the anticipated increase in production from newly discovered gold deposits of the southern Pacific and western US, this ...
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Distribution of Oil and Gas on Active Continental Margins: ABSTRACT
AAPG Bulletin, 1984Accumulation of oil and gas in an area depends on amount and type of organic matter, adequate temperatures for generation, suitable trapping configuration, and correct timing of events. All these factors can vary considerably across active margins of both island arc and continental (Andean) type.
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Geological Society, London, Special Publications, 1984
Summary A variety of Holocene sedimentary processes and depositional environments in Santa Barbara Basin may serve as a model for terrigenously-dominated hemipelagic basins devoid of submarine canyons: (1) suspensate transport; (2) turbidity current transport; (3) mass movement on the lower slope; (4) the imprint of current patterns on both ...
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Summary A variety of Holocene sedimentary processes and depositional environments in Santa Barbara Basin may serve as a model for terrigenously-dominated hemipelagic basins devoid of submarine canyons: (1) suspensate transport; (2) turbidity current transport; (3) mass movement on the lower slope; (4) the imprint of current patterns on both ...
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Turbidite paleoseismology along the active continental margin of Chile - Feasible or not?
2015Much progress has been made in estimating recurrence intervals of great and giant subduction earthquakes using terrestrial, lacustrine, and marine paleoseismic archives. Recent detailed records suggest these earthquakes may have variable recurrence periods and magnitudes forming supercycles.
Bernhardt, Anne +4 more
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Chapter 2 Evolution of Chert at Active and Passive Continental Margins
1983Abstract Because paleo-oceanography is largely determined by plate movements, the patterns of continental runoff, nutrients, and depth and distance from shore affect the occurrence of marine siliceous deposits; these sediments are gradually lithified and typically end up as overthrust continental margin chert sequences.
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Variables Affecting Trench and Trench-Slope Sedimentation Along Active Continental Margins: ABSTRACT
AAPG Bulletin, 1980Studies of active continental margins show the diversity of sedimentation patterns in trenches and on trench slopes. Many variables produce a range of distinctive deposits on the seaward trench slope, the trench axis, and the landward trench slope which can be used to interpret modern and ancient depositional settings.
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Continental Slope Deposits from a Late Cretaceous, Tectonically Active Margin, Southern California
SEPM Journal of Sedimentary Research, 1985ABSTRACT Extensive, active-margin continental-slope deposits are not commonly preserved in the rock record. The middle and upper portions of the Holz Shale (Ladd Formation) in Black Star Canyon, northern Santa Aria Mountains, represent such a sequence where shale and mudstone strata are dissected by large, coarse-grained channel-fill deposits. Channels
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Cancer statistics for the US Hispanic/Latino population, 2021
Ca-A Cancer Journal for Clinicians, 2021Kimberly D Miller +2 more
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