Results 21 to 30 of about 3,531 (178)

Establishing Provenance from Highly Impoverished Heavy Mineral Suites: Detrital Apatite and Zircon Geochronology of Central North Sea Triassic Sandstones

open access: yesGeosciences, 2022
A study of Triassic sandstones in the central North Sea, UK, has shown that combined detrital zircon and apatite geochronology and apatite trace element analysis is a powerful tool for reconstructing provenance for sandstones with diagenetically ...
Iain P. Greig   +3 more
doaj   +1 more source

Supplementary material for "Lithostratigraphy of Paleozoic metasediments in southern Fiordland, New Zealand" [PDF]

open access: yes, 2022
Supplementary material to accompany Jongens R, Turnbull IM, Allibone AH, Lithostratigraphy of Paleozoic metasediments in Southern Fiordland, New Zealand, published in the New Zealand Journal of Geology and Geophysics (https://doi.org/10.1080/00288306 ...
Richard Jongens (14055084)   +2 more
core   +1 more source

Data for Deformation mechanisms of blueschist facies continental metasediments may offer insights into deep episodic tremor and slow slip events [PDF]

open access: yes, 2023
Supporting Information for "Deformation mechanisms of blueschist facies continental metasediments may offer insights into deep episodic tremor and slow slip events "THIS DATASET IS ARCHIVED AT DANS/EASY, BUT NOT ACCESSIBLE HERE.
Giuntoli, F (via Mendeley Data)
core   +3 more sources

SEDIMENTOLOGICAL CONSIDERATIONS ON THE LITHOCHRONOSTRATIGRAPHIC DISCONTINUITY ESTABLISHED BETWEEN THE SANSIKWA SUB-GROUP AND THE MAYUMBIAN GROUP IN THE SECTOR BETWEEN MPETE AND NDWIZI (CENTRAL KONGO, DR CONGO) [PDF]

open access: yesGeological Behavior
East of the Matadi square degree, the transition from the metasedimentary protoliths of the Mayumbian Group to the clayey-sandy deposits of the Sansikwa Subgroup recalls a similar sedimentological history but distinct in their paleoenvironmental ...
Mukeba C.L   +7 more
doaj   +1 more source

Geology of the Saint-Marcel valley metaophiolites (Northwestern Alps, Italy)

open access: yesJournal of Maps, 2017
The geological map of the Saint-Marcel valley at the scale of 1:20,000 illustrates the tectonic setting of metaophiolites from the southern Aosta Valley, in the Italian side of the Western Alpine belt.
Paola Tartarotti   +6 more
doaj   +1 more source

The evolution of the Sesia Zone (Western Alps) from Carboniferous to Cretaceous: insights from zircon and allanite geochronology

open access: yesSwiss Journal of Geosciences, 2020
Microscale dating of distinct domains in minerals that contain relics of multiple metamorphic events is a key tool to characterize the polyphase evolution of complex metamorphic terranes. Zircon and allanite from five metasediments and five metaintrusive
Alice Vho   +3 more
doaj   +1 more source

Discovery of Mega‐Sheath Folds Flooring the Liwan Subbasin (South China Sea): Implications for the Rheology of Hyperextended Crust

open access: yesGeochemistry, Geophysics, Geosystems, 2020
Sheath folds recognized on kilometer scale are rare and only described in salt tectonics in seismic data. Here, we present mega‐sheath folds spectacularly imaged in a 3‐D seismic survey in the seismic basement flooring the hyperextended Liwan subbasin in
C. Zhang   +8 more
doaj   +1 more source

Geochemistry and Petrology of Metasediments Associated with Gold Mineralization in Imonga Area, Eastern DR Congo [PDF]

open access: yes, 2023
The Imonga sector is located in the Eastern of DR Congo, precisely within the Maniema province located in the Central African Karagwe Ankole belt, which forms together with the Kibara belt a Mesoproterozoic geological structure.
Mulumba, Raha   +5 more
core   +1 more source

Rare-earth elements in Precambrian iron formations in Väyrylänkylä, South Puolanka area, Finland [PDF]

open access: yesBulletin of the Geological Society of Finland, 1975
Partial rare-earth element (REE) and ore analyses of 19 samples of oxide-, carbonate-, silicate-, and sulphide-facies rocks from the Superior-type Precambrian (Karelian) iron formations and associated rocks (pelitic metasediments, dolomite, basic tuffite
K. Laajoki
doaj   +1 more source

Schistes Lustrés in a hyper-extended continental margin setting and reinterpretation of the limit between the Mont Fort and Tsaté nappes (Middle and Upper Penninics, Western Swiss Alps)

open access: yesSwiss Journal of Geosciences, 2023
The Schistes Lustrés form a large and complex unit at the top of the Penninic nappe stack of the Alpine belt. Calcschists, partly of Late Cretaceous age, constitute the dominant lithology.
Adrien Pantet   +5 more
doaj   +1 more source

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