Results 31 to 40 of about 124,258 (296)

Geological and chronological characteristics of the Baiyin'gaolao Formation in Gaoyaowula, Inner Mongolia

open access: yesDizhi lixue xuebao, 2021
Based on a regional geological survey at a scale of 1:50000, it reveals that the volcanic rocks from the Baiyin'gaolao Formation of Gaoyaowula in Inner Mongolia could be divided into three lithologic segments by the triple mapping method of "volcanic ...
DONG Peipei   +5 more
doaj   +1 more source

Ages of the Pliocene-Pleistocene Alexandra and Ngatutura Volcanics, western North Island, New Zealand, and some geological implications [PDF]

open access: yes, 1989
The Alexandra and Ngatutura Volcanics are the two southernmost of the Pliocene-Quaternary volcanic fields of western and northern North Island, New Zealand, northwest of Taupo Volcanic Zone TVZ.
Briggs, Roger M.   +3 more
core   +2 more sources

Biohermal structures exploration of the Pre Upper Permian sedimentary rocks of the northern part of the Buzachi Peninsula and the neighbouring shelf area of the Caspian Sea [PDF]

open access: yesНефтегазовая геология: Теория и практика, 2021
A detailed lithological and stratigraphical analysis of poorly studied Pre Upper Permian sedimentary section uncovered by deep wells on the Buzachi Peninsula is carried out. The characteristic lithological strata are distinguished.
Popkov V.I., Popkov I.V.
doaj   +1 more source

Tectonic significance of changes in post-subduction Pliocene-Quaternary magmatism in the south east part of the Carpathian-Pannonian Region [PDF]

open access: yes, 2010
The south-eastern part of the Carpathian–Pannonian region records the cessation of convergence between the European platform/Moesia and the Tisza–Dacia microplate.
Alexandru Szakács   +112 more
core   +2 more sources

Post-collisional Tertiary–Quaternary mafic alkalic magmatism in the Carpathian–Pannonian region: a review [PDF]

open access: yes, 2004
Mafic alkalic volcanism was widespread in the Carpathian–Pannonian region (CPR) between 11 and 0.2 Ma. It followed the Miocene continental collision of the Alcapa and Tisia blocks with the European plate, as subduction-related calc-alkaline magmatism was
Albarede   +75 more
core   +1 more source

Modeling pN2 through Geological Time: Implications for Planetary Climates and Atmospheric Biosignatures [PDF]

open access: yes, 2016
Nitrogen is a major nutrient for all life on Earth and could plausibly play a similar role in extraterrestrial biospheres. The major reservoir of nitrogen at Earth's surface is atmospheric N2, but recent studies have proposed that the size of this ...
Buick, R.   +5 more
core   +2 more sources

Abrupt onset of the Little Ice Age triggered by volcanism and sustained by sea‐ice/ocean feedbacks

open access: yesGeophysical Research Letters, 2012
Gifford H Miller   +2 more
exaly   +2 more sources

Medieval Irish chronicles reveal persistent volcanic forcing of severe winter cold events, 431–1649 CE

open access: yesEnvironmental Research Letters, 2013
Explosive volcanism resulting in stratospheric injection of sulfate aerosol is a major driver of regional to global climatic variability on interannual and longer timescales. However, much of our knowledge of the climatic impact of volcanism derives from
Francis Ludlow   +9 more
doaj   +1 more source

Explosive volcanism as a key driver of the late Paleozoic ice age

open access: yesGeology, 2019
Atmospheric CO2 exerts a robust and well-documented control on Earth’s climate, but the timing of glaciation during the late Paleozoic Ice Age (LPIA; ca. 360–260 Ma) is inconsistent with pCO2 reconstructions, hinting at another factor.
G. Soreghan, M. Soreghan, N. Heavens
semanticscholar   +1 more source

Khanneshin - the Afghan carbonatite volcano, discovered in the office

open access: yesИзвестия высших учебных заведений: Геология и разведка, 2017
The pétrographie and mineralogical laboratory study of the rock samples and the analysis of the geological setting in the sites of their collection (South Afghanistan) allowed suggesting the presence of the carbonatite volcano there.
B. Ya. Vikhter
doaj   +1 more source

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