Results 11 to 20 of about 20,254 (256)

Permian Large Igneous Provinces and Their Paleoenvironmental Effects

open access: yesGeophysical Monograph Series, Page 417-434., 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.
Jun Chen, Yi‐Gang Xu
wiley  

+8 more sources

Fluid interaction mechanism and diagenetic reformation of basement reservoirs in Beier Sag, Hailar Basin, China

open access: yesPetroleum Exploration and Development, 2020
Based on analysis of core observation, thin sections, cathodoluminescence, scanning electron microscope (SEM), etc., and geochemical testing of stable carbon and oxygen isotopes composition, element content, fluid inclusions, and formation water, the ...
Juan LI   +8 more
doaj   +1 more source

Fluid Outflows From Venus Impact Craters: Analysis From Magellan Data [PDF]

open access: yes, 1992
Many impact craters on Venus have unusual outflow features originating in or under the continuous ejecta blankets and continuing downhill into the surrounding terrain. These features clearly resulted from flow of low-viscosity fluids, but the identity of
Asimow, Paul D., Wood, John A.
core   +1 more source

Volcanic facies development characteristics of Yingcheng Formation in Songliao Basin: A case study of field outcrops in Jiutai area of Jilin Province [PDF]

open access: yesYouqicang pingjia yu kaifa
To explore the intricate relationship between volcanic rock types, volcanic facies, and genetic models within the Yingcheng Formation of the Songliao Basin, and to understand their implications for oil and gas exploration, a comprehensive analysis was ...
SHEN Yanjie,LI Junru,ZHANG Liya,ZHOU Yang,CHENG Rihui
doaj   +1 more source

The Kummitsoiva komatiite complex and its satellites in northern Finland [PDF]

open access: yesBulletin of the Geological Society of Finland, 1983
The Kummitsoiva komatiite complex and its satellites, regarded either as Archean or Proterozoic in age, consist principally of amphibole- chlorite rocks corresponding chemically to basaltic komatiite of the Geluk type in South Africa.
M. Saverikko
doaj   +1 more source

A thermodynamical model for rainfall-triggered volcanic dome collapse [PDF]

open access: yes, 2004
Dome-forming volcanic eruptions typically involve the slow extrusion of viscous lava onto a steep-sided volcano punctuated by collapse and the generation of hazardous pyroclastic flows.
Adrian J. Matthews   +14 more
core   +1 more source

Large-magnitude (VEI ≥ 7) ‘wet’ explosive silicic eruption preserved a Lower Miocene habitat at the Ipolytarnóc Fossil Site, North Hungary

open access: yesScientific Reports, 2022
During Earth’s history, geosphere-biosphere interactions were often determined by momentary, catastrophic changes such as large explosive volcanic eruptions.
Dávid Karátson   +14 more
doaj   +1 more source

Mineralogical properties of pyroclastic materials from Mount Merapi, Indonesia [PDF]

open access: yesBIO Web of Conferences
Mount Merapi, located in Indonesia, is known as one of the most active volcanoes globally, often resulting in volcanic eruptions that produce pyroclastic materials.
Kurniati   +5 more
doaj   +1 more source

Identification pyroclastic flow of magnetic minerals (Holocene volcano): A case study of paleo-volcano Lawu on the south side, Central Java, Indonesia

open access: yesKuwait Journal of Science, 2023
Indonesia is surrounded by three tectonic plates: the Eurasian, Indo−Australian, and Pacific plates. The plates have caused Indonesia to have many volcanoes, both active and inactive, resting, or no longer active.
Budi Legowo   +6 more
doaj   +1 more source

A stress-controlled mechanism for the intensity of very large magnitude explosive eruptions [PDF]

open access: yes, 2011
Large magnitude explosive eruptions are the result of the rapid and large-scale transport of silicic magma stored in the Earth's crust, but the mechanics of erupting teratonnes of silicic magma remain poorly understood.
Costa, Antonio   +3 more
core   +1 more source

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