Results 61 to 70 of about 11,994 (188)

Evidence for Compact Dark Matter in Galactic Halos [PDF]

, 1999
Clumped dark matter arises naturally within the framwork of generic cosmological dark matter models. Invoking the existence of dark matter clumps can also solve may unexplained mysteries in astrophysics and geology or geophysics, eg.
Abbas, A., Abbas, S., Mohanty, S.
core   +4 more sources

Role of Large Igneous Provinces in continental break-up varying from “Shirker” to “Producer”

Communications Earth & Environment
Traditionally, the emplacement of the Large Igneous Provinces (LIPs) is considered to have caused continental break-up. However, this does not always seem to be the case, as illustrated by, for example, the Siberian Traps, one of the most voluminous ...
Alexander Koptev, Sierd Cloetingh
doaj   +1 more source

Reconstruction of drainage evolution in a Large Igneous Province : Intra-basaltic sedimentation in the Columbia River Basalt Province, Washington State, USA [PDF]

, 2013
Peer ...
Ebinghaus, Alena, Hartley, Adrian John, Hole, Malcolm John, Jolley, David William, Millett, John   +4 more
core  

Volcanogenic Dark Matter and Mass Extinctions

, 1996
The passage of the Earth through dense clumps of dark matter, the presence of which are predicted by certain cosmologies, would produce large quantities of heat in the interior of this planet through the capture and subsequent annihilation of dark matter
Afsar Abbas, Basu, Bengtsson, Bhandari, Bottino, Campbell, Collar, Courtillot, Freese, Gaisser, Gould, Kolb, Krauss, Officer, Officer, Press, Samar Abbas, Silk, Sutherland, Vacquier, Walker   +20 more
core   +1 more source

Large igneous provinces and mass extinctions: an update [PDF]

, 2014
The temporal link between mass extinctions and large igneous provinces is well known. Here, we examine this link by focusing on the potential climatic effects of large igneous province eruptions during several extinction crises that show the best ...
Bond, David P. G., Wignall, Paul B.
core   +1 more source

Continental Flood Basalts and Mantle Plumes: a Case Study of the Northern Ethiopian Plateau [PDF]

Journal of Petrology, 2009
New geochemical data integrated in a petrogenetic model indicate that the 30Ma Northern Ethiopian continental flood basalts (CFBs) preserve a record of magmas generated from the centre to the flanks of a plume head, currently corresponding to the ‘ Afar hotspot’ .
BECCALUVA, Luigi, BIANCHINI, Gianluca, NATALI, Claudio, SIENA, Franca   +3 more
openaire   +8 more sources

Evidence for a reducing Archean ambient mantle and its effects on the carbon cycle [PDF]

, 2016
Chemical reduction-oxidation mechanisms within mantle rocks link to the terrestrial carbon cycle by influencing the depth at which magmas can form, their composition, and ultimately the chemistry of gases released into the atmosphere.
Aulbach, Sonja, Stagno, Vincenzo
core   +1 more source

Flood basalt eruptions, comet showers, and mass extinction events [PDF]

A chronology of initiation dates of the major continental flood basalt episodes has been established from compilation of published K-Ar and Ar-Ar ages of basaltic flows and related basic intrusions.
Rampino, Michael R., Stothers, Richard B.   +1 more
core   +1 more source

Reconciling the shadow of a subduction signature with rift geochemistry and tectonic environment in Eastern Marie Byrd Land, Antarctica [PDF]

, 2016
Basalt-trachyte volcanoes in the Marie Byrd Land (MBL) Cenozoic province lie along the Amundsen Sea coast on the north flank of the West Antarctic rift.
Choi, Sung Hi, Hart, Stanley R., LeMasurier, Wesley E., Mukasa, Sam, Rogers, Nick   +4 more
core   +1 more source

An Introduction to SGTPPR: Sparse Geochemical Tectono‐Magmatic Setting Probabilistic MembershiP DiscriminatoR

Geochemistry, Geophysics, Geosystems
We present a new and easy‐to‐use geochemical tectono‐magmatic setting discriminator to calculate the probability of membership (the Sparse Geochemical Tectono‐magmatic setting Probabilistic membershiP discriminatoR, SGTPPR) that runs in Excel. It outputs
Kenta Ueki, Hideitsu Hino, Tatsu Kuwatani   +2 more
doaj   +1 more source