Results 91 to 100 of about 3,780 (205)

A Rapid and Accurate Method for Estimating the Temperature Sensitivity of Soil Organic Matter (Q10)

European Journal of Soil Science, Volume 76, Issue 3, May–June 2025.
ABSTRACT The carbon flux from soil organic matter degradation is significant and could increase with climate change, with a potential retroactive effect. The change in CO2 emissions from soils due to temperature variations can be estimated using the Q10 parameter, which measures how sensitive the rates of chemical reactions or biological processes are ...
Clément Bonnefoy‐Claudet, Mathieu Thevenot, Jean Lévêque, Olivier Mathieu   +3 more
wiley   +1 more source

Significance of Leucogranitic Gneiss in the Archean Teton Range

The UW National Parks Service Research Station Annual Reports, 2008
In previous years of this project, we have developed the hypothesis that the high-pressure granulites exposed in the Moose Basin area of the Teton Range represent evidence of a 2.7 billion year­old continent-continent collision. We have described gneisses in the Teton Range that show two distinct metamorphic histories. In the northwest there are high­
B. Frost, C. Frost, S. Swapp, L. Finley-Blasi, S. Stacey   +4 more
openaire   +2 more sources

A multidisciplinary study of a syntectonic pluton close to a major lithospheric-scale fault: relationships between the Montmarault granitic massif and the Sillon Houiller Fault in the Variscan French Massif Central. Part I: Geochronology, mineral fabrics and tectonic implications [PDF]

, 2007
International audienceDue to its location along one of the major faults, the Sillon Houiller Fault (SHF) of the French Massif Central (FMC), the Montmarault granitic pluton is well-suited to better understand the place of the late-orogenic magmatism in ...
Chen, Yan, Faure, Michel, Joly, Aurore, Martelet, Guillaume   +3 more
core   +3 more sources

Multi‐Stage Growth of Kyanite in Migmatites Interpreted by Integrating Forward Thermodynamic Modelling and Trace Element Signature

Journal of Metamorphic Geology, Volume 43, Issue 4, Page 315-339, May 2025.
ABSTRACT Trace element zoning in kyanite can retain information about its growth history, particularly in anatectic metapelites. There, kyanite can grow (i) at sub‐solidus conditions through metamorphic reactions involving other aluminous phases as reactants, (ii) through muscovite dehydration melting reactions, and (iii) during cooling and melt ...
Sara Nerone, Chiara Groppo, Mónica Ágreda‐López, Maurizio Petrelli, Franco Rolfo   +4 more
wiley   +1 more source

Some progress on understanding the Phanerozoic granitoids in China

China Geology, 2018
: There are large volumes of the Phanerozoic granitoid rocks in China and neighboring areas. In recent years, numerous new and precise U-Pb zircon ages have been published for these granitoids, and define many important magmatic events, such as ca.
Tao Wang, Ying Tong, Xiao-xia Wang, Jian-ren Mao, Hong-rui Zhang, He Huang, Shan Li, Lei Guo, Jian-jun Zhang   +8 more
doaj   +1 more source

Metamorphism and plutonism in the Quetico Belt, Superior Province, N.W. Ontario [PDF]

The Quetico Belt lies between the metavolcanic Wawa-Shebandowan and Wabigoon Belts. It consists of marginal metasedimentary rocks and central pelitic, gneissic and plutonic rocks.
Percival, J. A.
core   +1 more source

Tourmaline 40Ar/39Ar chronology of tourmaline-rich rocks from Central Iberia dates the main Variscan deformation phases [PDF]

, 2009
During crustal thickening, metapelites taken to depth release boron-bearing hydrothermal fluids because of progressive heating and dehydration. These fluids swiftly percolate upwards, especially if the crust is being actively deformed, to form tourmaline
Bea, F., Gil-Crespo, P. P., Montero, P., Pesquera, A., Torres-Ruiz, J.   +4 more
core   +7 more sources

The Val Biandino Intrusive Suite (central Southern Alps, N Italy): new geochronological and geochemical data on the Early Permian magmatic activity in the Southalpine Domain

Swiss Journal of Geosciences
The Early Permian in the present-day Europe area was a time when a major tectonic shift occurred, leading from the tectonic collapse of the Variscan orogeny to the crustal extension and thinning that characterized the Early Permian times.
Stefano Zanchetta, Chiara Crippa, Andrea Zanchi, Chiara Montemagni   +3 more
doaj   +1 more source

U-Pb AGE AND GEOCHEMICAL TYPIFICATION OF THE SARAM MASSIF ROCKS (WESTERN TRANSBAIKALIA): EARLY JURASSIC GRANITOID MAGMATISM

Геодинамика и тектонофизика
The paper presents data on the geological position, age and features of the material composition of the Saram massif granitoids, located in the northwestern part of the Malkhan ridge of Western Transbaikalia.
A. L. Elbaev, I. V. Gordienko, V. B. Khubanov, N. S. Karmanov, B. Zh. Zhalsaraev   +4 more
doaj   +1 more source

LATE NEOPROTEROZOIC RARE-METAL LEUCOGRANITE FROM THE KHARIUSIKHA MASSIF OF YENISEI RIGDE: GENESIS AND RELATIONSHIP TO MAGMATISM OF A LARGE IGNEOUS PROVINCE

Геодинамика и тектонофизика
The paper deals with the petrogeochemical composition and U-Pb (SHRIMP-II) age (753±6 Ma) of subalkaline leucogranites and syenites from the Khariusikha massif of the Yenisei Ridge, which contain rare-metal mineralization.
A. D. Nozhkin, O. M. Turkina
doaj   +1 more source