Results 111 to 120 of about 278,731 (238)

libreoffice-calc-table-templates

open access: yes
The Universal Spreadsheet Compilation in LibreOffice Calc includes various types of spreadsheets such as workplace, operations, student, business, accounting, procurement, household, public affairs, personnel, and miscellaneous.If you use this software ...
Chen, Yung-Ting
core   +2 more sources

Reconstructing Along‐Strike Variability of Retreating Accretionary Margins Using Detrital Isotopic Proxies in Patagonia and Japan

open access: yesTectonics, Volume 45, Issue 9, September 2026.
Abstract Retreating accretionary systems are common features of convergent plate margins. They are characterized by upper plate extension and backarc basin formation, which often forms diachronously and asymmetrically along‐strike. This study tests the hypothesis that this along‐strike variability in backarc basin formation is reflected in detrital and
F. M. Rey   +3 more
wiley   +1 more source

Deep-Water Volcaniclastic Layers in the Late Messinian Apennines Foreland Basin Unravel the First Calc-Alkaline Rhyolitic Eruption in the Central Italy Magmatic System

open access: yesGeosciences
A package of upper Messinian volcaniclastic layers (UMVLs), exposed in the deep-water foreland basin system of the central Apennines (Italy), is the volcanic product of a rhyolitic eruption dated to 5.5 Ma.
Michela Principi   +4 more
doaj   +1 more source

Multi‐Stage Evolution of Subducted Oceanic Mantle: The Marlborough Ultramafic Suite (New England Orogen, Australia)

open access: yesGeochemistry, Geophysics, Geosystems, Volume 27, Issue 9, September 2026.
Abstract Oceanic lithosphere is continuously destroyed by subduction, challenging our ability to develop tectonic reconstructions. One way to tackle this problem is to examine relics of once‐consumed oceanic domains preserved along convergent margins. In the New England Orogen (eastern Australia), disrupted exposures of ultramafic rocks loosely define ...
J. A. Pasco   +4 more
wiley   +1 more source

The Distinction Between Sn‐Mineralized and Sn‐Barren Granites in Sn Isotopes

open access: yesGeochemistry, Geophysics, Geosystems, Volume 27, Issue 9, September 2026.
Abstract Tin mineralization is commonly associated with highly evolved granites. However, not all highly evolved granitic rocks are mineralized with Sn. Comparative studies of Sn‐fertile and Sn‐barren granites can deepen our understanding of the key processes that lead to Sn enrichment in magmatic‐hydrothermal systems.
Cheng Xu   +5 more
wiley   +1 more source

Element fluxes associated with co-existing tholeiitic and calc-alkaline magmas in Japan

open access: yes, 1993
The coexistence of tholeiitic and calc-alkaline magmas within single volcanic systems is examined in detail within Towada and Aso volcanoes, Japan. Petrogenetic models are presented for each magmatic system with respect to intracrustal and mantle wedge ...
Hunter, Arlene G.
core   +1 more source

Geochemistry and mineral chemistry of Shahabad gabbroic intrusion, NW Nourabad, Lorestan province

open access: yesJournal of Economic Geology, 2013
The Shahabad gabbroic intrusion, with NW-SE trend cropped out at the boundary of Zagros and Sanandaj-Sirjan zones is composed of olivine gabbro, orthogabbro and troctolite.
Reza Zarei Sahamieh   +3 more
doaj  

Building the Andean Crust at ∼35°S: Arc Geochemistry Reveals Cretaceous Thinning and Rapid Neogene Thickening

open access: yesJournal of Geophysical Research: Solid Earth, Volume 131, Issue 9, September 2026.
Abstract Quantification of the timing and mechanisms of crustal thickening in Cordilleran orogenic hinterlands remains challenging. We address this in the Andes using whole‐rock geochemistry and zircon petrochronology from a >70 Myr volcanic record in the Tinguiririca valley of Chile (∼35° ${}^{\circ}$S), which captures a pivotal transition from ...
Chance B. Ronemus   +8 more
wiley   +1 more source

Setting conclitions, Petrology ancl Geochemistry of calc-alkaline rhyolites, stephanian-permian, in the iberian chains [PDF]

open access: yes, 1992
[Resumen] Se exponen los caracteres del emplazamiento, la composición petrológica y geoquímica de unos sills riolíticos que, con afinidad calco-alcalina, se emplazaron, bajo un ambiente sin-colisional, en diversos sectores de la Cadena Ibérica.
Vaquer, R.   +4 more
core  

Evolution of neogene calc-alkaline to alkaline volcanism in the Aliaga-Foca region (Western Anatolia, Turkey)

open access: yes, 2004
In the Foca Region, a complete Miocene volcano-sedimentary succession outcrops. This succession includes a well-developed central volcano gradually interdigitating with flank erruptions and a lacustrine sedimentary succession.
Erdogan, B, AKAY, ERHAN
core   +1 more source

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