Results 31 to 40 of about 63,412 (230)

In situ mineralisation of UK onshore igneous rocks offers significant CO2 storage potential

open access: yesEarth Science, Systems and Society
Safe and permanent storage of CO2 will be required to limit global warming to 1.5–2°C above pre-industrial levels. In situ mineralisation of CO2 within igneous rock formations is a rapid and secure method of geological CO2 storage.
Angus W. Montgomery   +4 more
doaj   +1 more source

Tracing the styles of mafic-felsic magma interaction: A case study from the Ahvenisto igneous complex, Finland [PDF]

open access: yesBulletin of the Geological Society of Finland, 2019
The 1.64 Ga Ahvenisto complex, southeastern Finland, is an anorthosite mangerite-charnokite-granite (AMCG) suite in which diverse interaction styles of coeval mafic and felsic magmas are observed.
Riikka Fred   +2 more
doaj   +1 more source

Low–pressure metamorphism of mafic granulites in the Chinese Altay orogen, NW China: P–T path, U–Pb ages and tectonic implications

open access: yesSolid Earth Sciences, 2020
Mafic granulites occur as massive lenses within host paragneisses at Wuqiagou area in the southern Chinese Altay orogen. They comprise a suite of fine–grained and coarse–grained mafic granulites, both characterized by an assemblage of orthopyroxene ...
Zhao Liu   +5 more
doaj   +1 more source

The structure and petrology of the Cnoc nan Cuilean Intrusion, Loch Loyal Syenite Complex, NW Scotland [PDF]

open access: yes, 2013
In NW Scotland, several alkaline intrusive complexes of Silurian age intrude the Caledonian orogenic front. The most northerly is the Loch Loyal Syenite Complex, which is divided into three separate intrusions (Ben Loyal, Beinn Stumanadh and Cnoc nan ...
Goodenough, Kathryn M.   +5 more
core   +3 more sources

A precise late Permian 40Ar/39Ar age for Central Iberian camptonitic lamprohyres

open access: yesGeologica Acta, 2006
The Avila batholith of central Spain is composed, predominantly, of crustal-melt peraluminous granites cut by small-scale mafic alkaline bodies. Dating of the Gredos sector mafic camptonitic lamprophyre dykes was undertaken to constrain the Late Variscan
J.H. SCARROW   +4 more
doaj   +1 more source

Geochemistry and geochronology of the Palaeozoic mafic magmatism in the Codosera, Almadén and Guadalmez synclines, Central Iberian Zone, Spain

open access: yesBSGF - Earth Sciences Bulletin
The Central Iberian Zone (CIZ) hosts several mafic suites showing variable geochemical affinities and signatures evolving through time. To provide a better understanding of magmatic processes, possible sources and the temporal evolution of the mafic ...
Campos-Rodríguez Héctor R.   +11 more
doaj   +1 more source

Record of short-lived “orogen” on Eurasian continental margin by South China Sea obduction preserved in Taiwan collision

open access: yesFrontiers in Earth Science, 2023
The Taiwan mountain belt is the result of an arc-continent collision following the total subduction of the South China Sea and subsequent closure of the Luzon forearc, a process important in the accretionary growth of continents.
Yun-Chieh Lo   +5 more
doaj   +1 more source

Shoshonitic enclaves in the high Sr/Y Nyemo pluton, southern Tibet: Implications for Oligocene magma mixing and the onset of extension of the southern Lhasa terrane [PDF]

open access: yes, 2020
Post-collisional potassic and high Sr/Y magmatism in the Lhasa terrane provides critical constraints on the timing and mechanism of subduction of Indian lithosphere and its role in the uplift of the Tibetan Plateau.
Asimow, Paul D.   +8 more
core  

Opposing shear senses in a subdetachment mylonite zone: Implications for core complex mechanics [PDF]

open access: yes, 2010
[1] Global studies of metamorphic core complexes and low‐angle detachment faults have highlighted a fundamental problem: Since detachments excise crustal section, the relationship between the mylonitic rocks in their footwalls and the brittle deformation
E. S. Platzman   +8 more
core   +4 more sources

Geological and geotechnical challenges on the Great Dyke of Zimbabwe and their impact on hardrock pillar design

open access: yesDeep Underground Science and Engineering, EarlyView.
The Great Dyke of Zimbabwe is notable for its rich platinum group metal deposits but poses significant geological and geotechnical challenges due to its complex rock types and structural features. Traditional pillar design methods are insufficient for addressing these complexities; the study suggests incorporating advanced techniques such as machine ...
Tawanda Zvarivadza   +3 more
wiley   +1 more source

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