Results 11 to 20 of about 626,445 (280)

Geology of the southern Gran Paradiso Massif and Lower Piedmont Zone contact area (middle Ala Valley, Western Alps, Italy)

Journal of maps, 2021
This work presents the structural evolution of a poorly studied key-area in the middle Ala Valley, Western Alps, where two tectono-metamorphic units are exposed.
F. Caso, S. Nerone, A. Petroccia, M. Bonasera   +3 more
semanticscholar   +1 more source

The Halab deposit, SW Zanjan: Volcanogenic massive sulfide Zn–Pb (Ag) mineralization, Takab–Takht-e-Soleyman–Angouran metallogenic district

Journal of Economic Geology, 2021
Introduction The Halab Zn–Pb (Ag) deposit, 125-km southwest of Zanjan, is located in the Takab–Takht-e-Soleyman–Angouran metallogenic district (TTAMD), Sanandaj-Sirjan zone.
Fatemeh Karami, Hossein Kouhestani , Mir Ali Asghar Mokhtari , Amir Morteza Azimzadeh   +3 more
doaj   +1 more source

A new understanding of Demala Group complex in Chayu Area, southeastern Qinghai-Tibet Plateau: Evidence from zircon U-Pb and mica 40Ar/39Ar dating

China Geology, 2021
: The Chayu area is located at the southeastern margin of the Qinghai-Tibet Plateau. This region was considered to be in the southeastward extension of the Lhasa Block, bounded by Nujiang suture zone in the north and Yarlung Zangbo suture zone in the ...
Yuan Tang, Yu-ping Liu, Peng Wang, Wen-qing Tang, Ya-dong Qin, Xiao-dong Gong, Dong-bing Wang, Bao-di Wang   +7 more
doaj   +1 more source

The Sangmelima granite-greenstone belts (South Cameroon): Integration of remote sensing and aeromagnetic data for structural interpretation

Egyptian Journal of Remote Sensing and Space Sciences, 2019
The integration of geology, geophysics and remote sensing data was used to map the Sangmelima granite-greenstone belt terrain located in the South Cameroon. The region was not easily accessible, because of dense vegetation and thick lateritic overburden.
Akame Joseph Martial, Assembe Stéphane Pactrick, Zo'o Zame Philemon, Owona Sébatien, Ndougsa Mbarga Théophile, Azia Giles Abuara, Mvondo Ondoa Joseph   +6 more
doaj   +1 more source

Indosinian high-strain deformation for the Yunkaidashan tectonic belt, south China : Kinematics and 40Ar/39Ar geochronological constraints [PDF]

, 2007
Structural and 40Ar/39Ar data from the Yunkaidashan Belt document kinematic and tectonothermal characteristics of early Mesozoic Indosinian orogenesis in the southern part of the South China Block.
Bureau of Geology and Mineral Resources of Guangdong Province (GDBGMR), Bureau of Geology and Mineral Resources of Guangxi Zhuang Autonomous Region (GXBGMR), Bureau of Geology and Mineral Resources of Jiangxi Province (JXBGMR), Cai, Carter, Cawood, Cawood, Cawood, Chen, Chen, Chen, Chen, Cobbold, Cruden, Deng, Deprat, Ding, Dodson, Ellis, Engebretson, Faure, Fromaget, Goodel, Gradstein, Guo, Hacker, Hames, Harrison, Hodges, Holloway, Hsû, Huang, Hunan Bureau of Geology and Mineral Resources (HNBGMR), Konopásek, Law, Lepvrier, Li, Li, Li, Li, Liang, Liang, Lin, Liu, Lo, Metcalfe, Metcalfe, Monir, Peng, Peng, Peng, Peng, Peter A. Cawood, Purdy, Qiu, Ren, Richard, Sang, Shaocheng Ji, Stevens, Thompson, Touping Peng, Tullis, Twiss, Veevers, Veevers, Wang, Wang, Wang, Wang, Wang, Wang, Wang, Wang, Weiming Fan, Willett, Woodcock, Xinyue Chen, Xu, Xu, Xu, Yan, Yardley, Yuan, Yuejun Wang, Zhang, Zhong, Zhong, Zhou, Zhou, Zhu   +90 more
core   +1 more source

Evidence from Rb–Sr mineral ages for multiple orogenic events in the Caledonides of Shetland, Scotland [PDF]

, 2015
Shetland occupies a unique central location within the North Atlantic Caledonides. Thirty-three new high-precision Rb–Sr mineral ages indicate a polyorogenic history.
Bird, A. F., Strachan, R. A., Thirlwall, M. F., Walker, S.   +3 more
core   +3 more sources

A bigger splat: The catastrophic geology of a 1.2-b.y.-old terrestrial megaclast, northwest Scotland

Geology, 2020
Rockfalls are relatively little described from the ancient geological record, likely due to their poor preservation potential. At Clachtoll, northwest Scotland, a megaclast (100 m × 60 m × 15 m) of Neoarchean Lewisian gneiss with an estimated mass of ...
Z. Killingback, R. Holdsworth
semanticscholar   +1 more source

The Rwenzori Mountains, a Paleoproterzoic crustal shear belt crossing the Albertine rift system [PDF]

, 2015
This contribution discusses the development of the Paleoproterozoic Buganda-Toro belt in the Rwenzori mountains and its influence on the western part of the East African Rift System in Uganda.
Aanyu, K., Harbinson, R., Koehn, D., Link, K., Passchier, C.W., Sachau, T., Spikings, A.   +6 more
core   +1 more source

Quaternary rupture of a crustal fault beneath Victoria, British Columbia, Canada [PDF]

, 2017
The seismic potential of crustal faults within the forearc of the northern Cascadia subduction zone in British Columbia has remained elusive, despite the recognition of recent seismic activity on nearby fault systems within the Juan de Fuca Strait.
Amos, Colin, Leonard, Lucinda J., Levson, Vic, Morell, Kristin D., Regalla, Christine   +4 more
core   +1 more source

Structural geology of the Fuegian Andes and Magallanes fold-and-thrust belt - Tierra del Fuego Island

Geologica Acta, 2008
A synthesis of the structural geology of the Tierra del Fuego Island, which integrates a new data set derived from field surveys and literature data of the last few years, is presented here. The main geological features of the region developed during the
M. MENICHETTI, E. LODOLO, A. TASSONE
doaj   +1 more source