Results 51 to 60 of about 3,941 (231)

Mineralogical Characteristics of Skarn in Tuosibasitao Iron-Copper-Gold Deposits of the Northern Margin of Junggar, Xinjiang, and Their Geological Significance

Yankuang ceshi, 2013
The Tuosibasitao Fe-Cu-Au mineral deposit mainly occurs in the contact zone between the diorite porphyrite and basaltic volcanic rock of Middle Devonian Beitashan Formation in the forms of massives, heterogeneous gobbets, veinlets, breccia and veinlet ...
LV Shu-jun, YANG Fu-quan, CHAI Feng-mei, ZHANG Zhi-xin, LI Qiang   +4 more
doaj  

Phase Equilibria Analysis for Metacarbonate With Applications to Zoned Calc‐Silicate Aureoles

Journal of Metamorphic Geology, Volume 43, Issue 5, Page 445-465, June 2025.
ABSTRACT Carbonate rocks react with infiltrating hydrothermal fluids to produce zoned calcsilicate assemblages in contact aureoles. Petrogenetic grids provide valuable insights into phase relations, metamorphic temperature (T) and the fluid composition (X) of the metacarbonate systems, as well as semi‐quantification of the prograde decarbonation at ...
Zhenhao Zhou, Xu Chu
wiley   +1 more source

Timing of Dike and Sill Emplacement in the Inner Aureole of the Alta Stock, Utah Determined by Zircon and Monazite Petrochronology

Geochemistry, Geophysics, Geosystems, Volume 26, Issue 5, May 2025.
Abstract Detailed geochronology from two compositionally distinct generations of dikes and sills intruded into the Alta metamorphic aureole, north‐central Utah, complement previous geochronologic studies from the Alta stock, providing information on the timing of magmatism and the nature of emplacement.
C. J. Beno, M. A. Stearns, J. R. Bowman, J. M. Bartley, D. P. Fernandez, A. R. C. Kylander‐Clark   +5 more
wiley   +1 more source

A NEW DEPOSIT OF PEROVSKITE IN THE SOUTHERN URALS [PDF]

Минералогия, 2017
Perovskite from new deposit in the Verkhniy Ufaley region occurs in assemblage with andradite, magnetite, chlorite and hydroxyapatite. The habitus forms of perovskite are hexahedron and rhombic dodecahedron.
V.A. Popov, S.K. Nosov, A.M. Кuznetsov
doaj  

Implication of in situ Sr Isotope of Scheelite for Tungsten Mineralization: A Case Study of the Nanyangtian Scheelite Deposit, Southeast Yunnan, China

Yankuang ceshi, 2020
BACKGROUND The Nanyangtian scheelite deposit is an important skarn scheelite deposit in Yunnan Province, which is located in Laojunshan W-Sn deposit area, Southeast Yunnan.
WANG Zhong-qiang, LI Chao, ZHANG Ding-cai, JIANG Xiao-jun, ZHOU Li-min, YAN Qing-gao   +5 more
doaj   +1 more source

Identification of Multiple Thermal Events in High‐Grade Metacarbonate Rocks Using Carbon Isotope Thermometry: An Example From the Sør Rondane Mountains, East Antarctica

Geological Journal, Volume 60, Issue 2, Page 455-483, February 2025.
Carbon isotope thermometry in metacarbonate rocks from the Sør Rondane Mountains, East Antarctica revealed multiple thermal events. ABSTRACT Nine metacarbonate layers from the regionally metamorphosed terrane of the Sør Rondane Mountains in the Eastern Dronning Maud Land in East Antarctica were examined in detail for constraining the thermal events ...
M. Satish‐Kumar, Sasidharan Kiran, Fumiko Higashino, Tetsuo Kawakami, Tomokazu Hokada   +4 more
wiley   +1 more source

Petrology and Geochemistry of the Qozlou Granitoid and Related Fe skarn (west Zanjan)

Journal of Economic Geology, 2020
Introduction Fe skarn deposits are one of the important Fe deposits in the Zanjan province which have been exploited in recent years. The Qozlou Fe deposit is one of these Fe skarn deposits which is located at 65 km west of Zanjan.
Neda Shafaiepour, Mir Ali Asghar Mokhtari, Hossein Kouhestani, Maryam Honarmand   +3 more
doaj   +1 more source

Origin of Ultrapotassic, Ultracalcic, Ultrabasic SiO2‐Undersaturated Magmas: The Case Study of the Pleistocene Cupaello Kamafugite Monogenetic Volcano, Central Italy

Geochemistry, Geophysics, Geosystems, Volume 26, Issue 1, January 2025.
Abstract The Pleistocene (∼0.6 Ma) Cupaello monogenetic volcano, cropping out in central Italy, belongs to the Intra Apennine Province (IAP). It is represented by a single lava flow with kamafugitic composition, associated with a volumetrically limited pyroclastic deposit and a phosphate‐rich layer close to the small vent.
Michele Lustrino, Lorenzo Pistocchi, Sara Ronca, Francesca Innocenzi, Samuele Agostini   +4 more
wiley   +1 more source

Mineralogy and electron microprobe studies of magnetite in the Sarab-3 iron Ore deposit, southwest of the Shahrak mining region (east Takab)

Journal of Economic Geology, 2018
Introduction There is an iron mining complex called Shahrak 60 km east of the Takab town, NW Iran. The exploration in the Shahrak deposit (general name for all iron deposits of the area) started in 1992 by the Foolad Saba Noor Co.
Mohammad Maanijou, Leila Khodaei
doaj   +1 more source

Trace element geochemistry of magnetite from Mabianshan skarn iron deposit in the Lu-Zong volcanic basin, Eastern China

, 2023
Biao Wang, Yu Fan, Taofa Zhou, Yinan Liu, Yanick Blaise Ketchaya, Lei Yan, Zhenhai Zhong, Liang Zhang   +7 more
openalex   +1 more source