Results 81 to 90 of about 5,193 (249)

Volcanic passive continental margin beneath Maitri station in central DML, East Antarctica: constraints from crustal shear velocity through receiver function modelling

open access: yesPolar Research, 2017
Dronning Maud Land (DML) in East Antarctica is considered to be a key area for the reconstruction of the Gondwana supercontinent. We investigate the crustal shear wave velocity (Vs) model beneath the Maitri station, situated in the central DML of East ...
Sandeep Gupta, Nagaraju Kanna, A. Akilan
doaj   +1 more source

THE ZIRCON CHRONOLOGY OF THE INTRUSIVE MAGMATISM OF THE KANIN PENINSULA

open access: yesИзвестия высших учебных заведений: Геология и разведка, 2018
The Kanin Peninsula is an elevated block of the Timan Ridge where Precambrian sedimentary-metamorphic sequences and magmatic  rocks, intruding them, form the Kanin Kamen Ridge.
V. L. ANDREICHEV   +3 more
doaj   +1 more source

Not all supercontinents are created equal : Gondwana-Rodinia case study

open access: yes, 2013
The geologic records associated with the formation of the supercontinents Rodinia and Gondwana have markedly different seawater Sr and zircon Hf isotopic signatures.
Hawkesworth, Chris   +7 more
core   +1 more source

Search features of hydrocarbons in the lower oil and gas complex for the different subregions of the Dnieper-Donetsk cavity Article 2. The oil and gas deposits search areas in the Romensko-Okhtyrsky subregion

open access: yesМінеральні ресурси України, 2015
Generalized previous studies and are further evidence of productivity lower oil and gas complex (IPC) in Romensko-Ohtyrsky subregion of Dnieper-Donets cavity.
V. P. Lebed
doaj  

Testing for the presence of a terrane boundary within Neoproterozoic (Dalradian) to Cambrian siliceous turbidites at Callander, Perthshire, Scotland [PDF]

open access: yes, 1999
The Southern Highland Group (Dalradian) and Keltie Water Grit Formation, which includes the Lower Cambrian Leny Limestone, form an inverted, 1.4 km thick, largely arenaceous, sequence at Callander.
Pringle, M.S., Tanner, P.W.G.
core  

Geology of the Gobi and Mongol Altai junction enhanced by gravity analysis: a key for understanding of the Mongolian Altaides

open access: yesJournal of Maps, 2020
The geological map L-47-V at a scale 1:500,000 covers part of Mongolian Altaids with ophiolite fragments in southern Central Asian Orogenic Belt in SW Mongolia. This region has a basin and range topography with Neoproterozoic and Palaeozoic units exposed
Pavel Hanžl   +11 more
doaj   +1 more source

A reactive assimilation model for regional-scale cordierite-bearing granitoids: geochemical evidence from the Late Variscan granites of the Central Iberian Zone, Spain [PDF]

open access: yes, 2008
Regional scale biotite and cordierite-bearing granites (s.l.) in the Variscan of the Central Iberian Zone (CIZ) are spatially closely associated with cordierite-rich nebulites and cordierite-bearing two-mica granites, and with cordierite-rich high grade ...
Ellam, R.M.   +6 more
core   +1 more source

The Earth's Greatest Porous Media

open access: yesPerspectives of Earth and Space Scientists, Volume 7, Issue 1, December 2026.
Abstract How deeply does modern meteoric water circulate into the continental crust? How deep is the Earth's Critical Zone (CZ), the top layer of the continental lithosphere that co‐evolves with the atmosphere, hydrosphere, and biosphere, extending from vegetation canopy down to fresh bedrock and the base of active groundwater circulation?
Ying Fan   +3 more
wiley   +1 more source

Guide to the geology of Bradgate Park and Swithland Wood, Charnwood Forest [PDF]

open access: yes, 2010
Charnwood Forest is one of the few parts of England where there are exposures of ‘basement’ rocks dating back to Precambrian time. Its locally rugged topography is caused by these highly resistant rocks protruding as craggy knolls through a surrounding ...
Carney, J.N.
core  

Global Glacial Rock Weathering Signature Depends on Competing Contributions From Ice Sheets and Alpine Glaciers

open access: yesGeophysical Research Letters, Volume 53, Issue 11, 16 June 2026.
Abstract Rock weathering influences Earth's atmosphere and climate. The dissolution of silicate minerals draws down atmospheric CO2 while sulfide oxidation coupled with carbonate dissolution releases CO2. Alpine glacier rock weathering causes high sulfide oxidation and carbonate dissolution.
S. Muñoz   +7 more
wiley   +1 more source

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