Results 81 to 90 of about 33,816 (306)

Study on the Re-Os Isotope Composition of Graphite from the Lutang Graphite Deposit in Hunan Province

Yankuang ceshi, 2017
Graphite has relatively high Re and Os contents and is an ideal mineral for Re-Os isotope dating. However, there are few studies on Re-Os dating of graphite.
LI Chao, WANG Deng-hong, ZHOU Li-min, ZHAO Hong, LI Xin-wei, QU Wen-jun   +5 more
doaj   +1 more source

An investigation into the controls of granite plutonism in the Sierra da Freita region, Northern Portugal [PDF]

, 2012
The Serra da Freita region of north central Portugal was chosen for study as it displays the complex relationships between regional structure, plutonism, regional and contact metamorphism typical of this part of Iberia.
Reavy, Reginald John
core  

Zircon U-Pb dating of Mesozoic volcanic and tectonic events in northwest Palmer Land and southwest Graham Land, Antarctica [PDF]

, 2009
New whole rock Rb-Sr and zircon U-Pb geochronological data and Sm-Nd isotopic data are presented from the central magmatic arc domain of the Antarctic Peninsula in the area of northwest Palmer Land and southwest Graham Land, Rb-Sr isochrons indicate an ...
Flowerdew, Michael, Leat, Philip, Millar, Ian, Riley, Teal, Scarrow, J.H., Whitehouse, M.J.   +5 more
core   +1 more source

Drawing by Vischer of Geyser Gulch and Pluton Creek, Sonoma, 1858-1866

, 2021
Unknown
openalex   +1 more source

Guadalupe pluton–Mariposa Formation age relationships in the southern Sierran Foothills: Onset of Mesozoic subduction in northern California? [PDF]

, 2009
We report a new 153 ± 2 Ma SIMS U-Pb date for zircons from the hypabyssal Guadalupe pluton which crosscuts and contact metamorphoses upper crustal Mariposa slates in the southern Sierra.
Ernst, W. G., Saleeby, Jason B., Snow, Cameron A.   +2 more
core   +1 more source

Progressively Fenitised Schist and Carbonatitic Clasts From a Metasomatic Aureole Beneath the Alkalic Dunedin Volcano, Otago, New Zealand

New Zealand Journal of Geology and Geophysics, Volume 69, Issue 2, June 2026.
Clasts of albite‐porphyroblastic quartzofeldspathic schist, derived from the Otago Schist basement, occur within the Port Chalmers Breccia, a diatreme at the centre of the Dunedin stratovolcano, New Zealand. Schists have undergone varying degrees of replacement reactions (at temperatures of 300° to >500°C) producing hornfelses, with Ca‐ and K‐enriched ...
Alan F. Cooper
wiley   +1 more source

Geochronological and geochemical constraints on magmatic evolution and mineralization of the northeast Ke’eryin pluton and the newly discovered Jiada pegmatite-type lithium deposit, Western China

, 2022
Xin Li, Hongzhang Dai, Denghong Wang, Shanbao Liu, Genhou Wang, Chenghui Wang, Fan Huang, Haiyang Zhu   +7 more
openalex   +1 more source

Shear-induced pressure changes and seepage phenomena in a deforming porous layer-I [PDF]

, 2003
We present a model for flow and seepage in a deforming, shear-dilatant sensitive porous layer that enables estimates of the excess pore fluid pressures and flow rates in both the melt and solid phase to be captured simultaneously as a function of stress ...
Arthur, Arthur, Arzi, Barboza, Barriére, Becker, Biot, Brauns, Brown, Carmichael, Castro, Cates, Connolly, Cundall, de Josselin de Jong, Dell'Angelo, Drew, Dullien, Emmons, Fernandez, Gaspar, Gaspar, Goddard, Hort, Huppert, Jellinek, Jupart, Kelemen, Kerr, Knesel, Koenders, Koenders, Koenders, Koenders, Koenders, Kohlstedt, Kuhn, Lambe, M. A. Koenders, Marsh, Marsh, Marsh, Martin, McBirney, McKenzie, Mead, Molenkamp, N. Petford, Nicolas, Paterson, Paterson, Petford, Petford, Petford, Renner, Reynolds, Rosenberg, Rowe, Rutter, Scott, Sleep, Spencer, Spiegelman, Spiegelman, Stevenson, Tait, Terzaghi, Turner, Van der Molen, Vasilyev, Vermeer, Vigneresse, Vigneresse, Wickham, Worster   +74 more
core   +1 more source

Arc Heat Flow and Magmatic Heat Budgets

Reviews of Geophysics, Volume 64, Issue 2, June 2026.
Abstract We evaluate hydrothermal heat loss from 11 volcanic‐arc segments (∼6,000 km of arc length, ∼10% of the global total), motivated by the observation that much magmatic heat ultimately crosses the land surface as heated aqueous fluid. Heat loss takes place by volcanic eruption, geothermal heat conduction to the surface, fumarolic (vapor ...
S. E. Ingebritsen, Kazuki Sawayama, Yuri Taran, Giovanni Chiodini, Tsuneomi Kagiyama, Hiroshi Shinohara, Julie V. Rowland, Benjamin A. Black   +7 more
wiley   +1 more source

Petrogenesis of Liucun pluton in the eastern section of Jiangnan orogenic belt，China: zircon U-Pb age, petrogeochemistry and Sr-Nd -Hf isotope characters

All Earth
The Liucun pluton, located in the eastern part of the Jiangnan orogenic belt in eastern China, is mainly composed of monzogranite and granite, with subsequent intrusions of syenogranite.
Fang Chen, Jianguo Du, Jingjing Chen, Mingming Sun, Xunfei Li   +4 more
doaj   +1 more source