Results 11 to 20 of about 16,460 (227)

Marcasite at the Permian‐Triassic Transition

open access: yesGeophysical Monograph Series, Page 377-399., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Elena Lounejeva   +7 more
wiley  

+2 more sources

Great earthquakes along the Western United States continental margin: implications for hazards, stratigraphy and turbidite lithology [PDF]

open access: yesNatural Hazards and Earth System Sciences, 2012
We summarize the importance of great earthquakes (<i>M</i><sub>w</sub> &gtrsim; 8) for hazards, stratigraphy of basin floors, and turbidite lithology along the active tectonic continental margins of the Cascadia subduction ...
C. H. Nelson   +3 more
doaj   +1 more source

Stratigraphy of the central parts of the Palaeoproterozoic Tampere Schist Belt, southern Finland: review and revision [PDF]

open access: yesBulletin of the Geological Society of Finland, 1998
The arc-type Palaeoproterozoic volcanic-sedimentary Tampere Schist Belt (TSB), close to the centre of the Svecofennian Orogen, comprises an E-W-striking major synform in its central parts.
Y. Kähkönen
doaj   +1 more source

Linear-stability analysis of plane beds under flows with suspended loads [PDF]

open access: yesEarth Surface Dynamics, 2023
Plane beds develop under flows in fluvial and marine environments; they are recorded as parallel lamination in sandstone beds, such as those found in turbidites.
K. Ohata, H. Naruse, N. Izumi
doaj   +1 more source

Petrography, geochemistry and depositional model of Ispikan Conglomerate, Makran Accretionary Prism, Southwest Pakistan

open access: yesKuwait Journal of Science, 2021
Depositional environments, provenance and tectonic settings of Ispikan group exposed in south west Makran, were revealed by lithofacies, petrography and geochemistry studies.
Muhammad Ahmed Farooqui   +4 more
doaj   +1 more source

Selective organic matter preservation in "burn-down" turbidites on the Madeira Abyssal Plain [PDF]

open access: yes, 2003
Oxidized intervals of five organic-rich Madeira Abyssal Plain (MAP) turbidites deposited during the Miocene, Pliocene, and Pleistocene all displayed comparable major loss of total organic carbon (TOC) (84 ± 3.1%) accompanied by a negative isotopic (δ13C)
Benner   +49 more
core   +2 more sources

Transformation, partitioning and flow–deposit interactions during the run-out of megaflows [PDF]

open access: yes, 2016
Funded by BG Brasil E&P LtdaPeer ...
Fallgatter, Claus   +3 more
core   +2 more sources

Lake sedimentological and ecological response to hyperthermals : Boltysh impact crater, Ukraine [PDF]

open access: yes, 2017
Acknowledgements Initial drilling of the Boltysh meteorite crater was funded by Natural Environment Research Council (NERC) grant NE/D005043/1. The authors are extremely grateful to the valuable scientific contributions of S. Kelley and I. Gilmour.
Andrews, Steven D.   +3 more
core   +1 more source

Defining Petrophysical Units of the Palmer Deep Sites from Leg 178 [PDF]

open access: yes, 2002
Palmer Deep, on the inner continental shelf southwest of Anvers Island off the Antarctic Peninsula, is a glacially overdeepened basin consisting of three subbasins. Two sites, 1098 and 1099, were drilled in the Palmer Deep area.
Evans, A.J.   +2 more
core   +1 more source

A Review of Event Deposits in Lake Sediments

open access: yesQuaternary, 2022
Event deposits in lake sediments provide invaluable chronicles of geodynamic and climatic natural hazards on multi-millennial timescales. Sediment archives are particularly useful for reconstructing high-impact, low-frequency events, which are rarely ...
Pierre Sabatier   +6 more
doaj   +1 more source

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