Results 111 to 120 of about 30,387 (283)

Tempo of magma degassing and the genesis of porphyry copper deposits

Scientific Reports, 2017
Porphyry deposits are copper-rich orebodies formed by precipitation of metal sulphides from hydrothermal fluids released from magmatic intrusions that cooled at depth within the Earth’s crust.
Cyril Chelle-Michou, Bertrand Rottier, L. Caricchi, G. Simpson   +3 more
semanticscholar   +1 more source

Syn‐ to Post‐Collisional Tectonic History of the Paleo‐Tethyan Orogenic Belt: Insights From Triassic Igneous Rocks in the North–Central Tibetan Plateau, China

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 6, June 2026.
Abstract The closure of the Paleo‐Tethys Ocean was one of the most important global geological events which formed the framework of the East Asian continent during the early Mesozoic. The Longmu Co‐Shuanghu suture zone is considered to record closure of the main basin of the Paleo‐Tethys Ocean.
Jinyong Li, Qingguo Zhai, Yiming Liu, Peiyuan Hu, Yue Tang, Lingfang Wu, Ning Yang   +6 more
wiley   +1 more source

Petrogenesis and tectonic setting of Early Cretaceous granodioritic porphyry from the giant Rongna porphyry Cu deposit, central Tibet

, 2018
© 2018 The Rongna Cu-(Au) deposit is a recently discovered giant low-grade composite porphyry-high sulfidation epithermal system in the Duolong ore district of central Tibet.
Guang-Ming Li, Lehmann, B., Jin-Xiang Li, Qin, K., Xin-Yu Zou, Cao, Mingjian, Zou, X., Ke-Zhang Qin, Zhang, X., Bernd Lehmann, Ming-Jian Cao, Li, G., Jun-Xing Zhao, Li, J., Xia-Nan Zhang, Zhao, J.   +15 more
core   +1 more source

Finite Element Modelling of Synthetic Normal Resistivity Logging Tool: Insights Into Vein Parameters, Borehole Fluids and Electrode Configuration

Geophysical Prospecting, Volume 74, Issue 5, June 2026.
ABSTRACT Borehole resistivity logging can play an important role in subsurface exploration by enhancing the accuracy of surface data inversion models. However, its application in the mining industry remains limited due to challenges posed by complex geological formations, particularly in vein‐hosted deposits such as orogenic gold and porphyry copper ...
Yasaman Nemati, J. Christian Dupuis, Bernard Giroux, Richard Smith   +3 more
wiley   +1 more source

Mineral transformations and element fluxes during propylitic alteration in porphyry ore systems: a case study of the Oyu Tolgoi Porphyry Cu-Au deposits, Mongolia [PDF]

, 2019
A new frontier in exploration geochemistry is the development of techniques that detect orebodies located at depth. The propylitic halo is the most extensive footprint of porphyry systems and may be the only exposed part of a buried ore system, so is at ...
Hart-Madigan, Lisa
core   +1 more source

Greek Commodities in Phoenicia: An Interdisciplinary Study of Imported Amphorae From Tell el‐Burak (Lebanon)

Archaeometry, Volume 68, Issue 3, Page 395-408, June 2026.
ABSTRACT This paper examines transport amphorae of Greek/Aegean types from the 7th–4th c. BCE imported to the Phoenician coastal settlement of Tell el‐Burak, Lebanon. We present a selection of 58 pieces analyzed by typological, chemical (NAA), and petrographic approaches.
Maximilian Rönnberg, Marcel Frenken, Johannes H. Sterba, Silvia Amicone   +3 more
wiley   +1 more source

Geochronology and fluid evolution of the Qulong porphyry system: Implications for porphyry deposit formation [PDF]

, 2016
Understanding the metal enrichment process and rate in porphyry Cu systems (PCS) is critical to underpin the genetic model of PCS and refine the template for exploration, of which robust temporal constrain is the key.
LI, YANG
core  

Anhydrous minerals in asteroid Bennu: Evidence for well‐preserved primordial components

Meteoritics &Planetary Science, Volume 61, Issue 6, Page 963-986, June 2026.
Abstract Aqueously altered carbonaceous astromaterials are dominated by secondary minerals, but a minor fraction of primary, anhydrous silicates and oxides escape alteration, offering insight into the original composition of asteroid parent bodies. We report the mineralogy, petrology, mineral chemistry, and oxygen isotopes of anhydrous minerals—50 ...
S. S. Russell, I. A. Franchi, T. Salge, X. Zhao, R. H. Jones, A. J. King, N. V. Almeida, P. F. Schofield, H. C. Bates, E. A. Cortes‐Calderon, N. Kawasaki, Y. Yurimoto, Y. Marrocchi, G. Libourel, K. Thomas‐Keprta, L. P. Keller, K. Righter, T. J. McCoy, T. J. Zega, J. J. Barnes, A. N. Nguyen, S. Tachibana, H. C. Connolly Jr, D. S. Lauretta   +23 more
wiley   +1 more source

Timing of the Magmatic to Hydrothermal Transition and the Onset of Porphyry Mineralization Across the Yerington Porphyry System, Nevada, USA

Porphyry Cu(-Au-Mo) deposits form in the upper (~2–8 km) regions of large, long-lived magmatic-hydrothermal systems. Although extensively studied, the timescales over which sufficient volumes of mineralizing fluids are extracted from magma source regions
Tapster, Simon R., Selby, David, Rollinson, Gavyn K., Carter, Lawrence C., Williamson, Ben J.   +4 more
core   +1 more source

Geological mapping in the proterozoic Mt. Isa Inlier, Queensland, Australia, using radiometric and multispectral remotely sensed data [PDF]

, 1992
Landsat Thematic Mapper, NSOOl Aircraft Thematic Mapper, Geoscan Mk. II. Multispectral Scanner and Airborne Gamma Radiometric data have been used to address a variety of geological problems in the Mary Kathleen area, 60 km east of Mt. Isa, NW Queensland.
Marsh, Stuart Harry
core