Results 31 to 40 of about 9,924 (222)

A talus rock glacier in Nantlle Valley, North Wales

Journal of Quaternary Science, EarlyView.
ABSTRACT Landforms comprising mixtures of fine and coarse sediment and deposited during late glacial times are ubiquitous in the British mountains. In many cases, their interpretation has often proved contentious; as a result, the non‐generic term discrete debris accumulations (DDA) has been used to describe them and, over the last 50 years, some have ...
Stephan Harrison, Ed Anderson
wiley   +1 more source

Petrology and gold content of adakitic granitoids of usthbelovskii complex in Makarevskii range of Gorny Altai

Известия Томского политехнического университета: Инжиниринг георесурсов, 2019
The relevance of the discussed issue is caused by the need of researching petro-geochemistry and petrologic peculiarities of gabbrogranitoid massifs of Makarevskii range which are related spatially to gold occurrence.
Anatoliу Ivanovich Gusev, Alexander Feopenovich Korobeinikov   +1 more
doaj   +2 more sources

Review of the Salpausselkä ice‐marginal formations in Finland

Journal of Quaternary Science, EarlyView.
ABSTRACT Extensive Salpausselkä ice‐marginal formations were deposited in southern and eastern Finland during the Weichselian deglaciation. These comprise three major ridges (I, II, and III Salpausselkäs) and their eastern counterparts (Tuupovaara, Koitere, and Pielisjärvi), together forming laterally continuous ice‐marginal formations extending ...
Jukka‐Pekka Palmu, Jussi Hovikoski, Reijo Pitkäranta, Antti E. K. Ojala   +3 more
wiley   +1 more source

Material composition of the Sharagol complex gabbro-diorite Late Paleozoic massifs of the Ungo-Khilok area, Central Transbaikalia, Russia

Известия Томского политехнического университета: Инжиниринг георесурсов
The significance of the research is determined by the lack of information on the composition of rocks of the gabbro-diorite intrusion and their role in continental crust formation and the age of manifestation of basic- intermediate magmatism on this ...
Roza A. Badmatsyrenova, Yaroslav Yu. Shelepov   +1 more
doaj   +1 more source

From Implement to Outcrop: a model for identifying implement source rock at outcrop

Internet Archaeology, 2009
Traditionally, the sourcing of prehistoric stone tools in Britain has been done most successfully by comparing the petrological and geochemical characteristics of individual stone tools with rock and debitage from known prehistoric quarry sites and stone
Amy Davis, Vin Davis, Mik Markham
doaj   +1 more source

Microplate Tectonics Through Earth History and Across Solid Multispheres

Geological Society of China Bulletin, EarlyView.
The evolution of tectonic microplates throughout Earth´s history as well as the transitions between microplates across different solid spheres offers a novel approach to expanding the traditional plate tectonics theory. ABSTRACT The evolution of tectonic microplates throughout Earth's history as well as the transitions between microplates across ...
Sanzhong Li, Yanhui Suo, Jie Zhou, Guozheng Sun, Jianping Zhou, Xianzhi Cao, Bo Liu, Lingli Guo, Zhaoxia Jiang, Qianqian Li, Shujuan Zhao, Long Chen, Xi Wang, Jun Hu, Xiaohui Li, Xiyao Li, Wenyong Duan, Lin Liu, Jie Liu, Guangzeng Wang, Pengcheng Wang, Qingbin Guan, Dingshan Deng, Xu Han, Liangliang Wang, Zihao Hu, Qiuling Liu, Heda Wang, Zihan Tian, Hans‐Peter Schertl   +29 more
wiley   +1 more source

Zircon U-Pb dating, mineralogy and geochemical characteristics of the gabbro and gabbro-diorite bodies, Boein–Miandasht, western Iran

, 2019
The Boein–Miandasht Complex (BMC) is a part of the Sanandaj–Sirjan metamorphic basement and is cut by gabbroic to granitoid bodies. These intrusive bodies comprise gabbro, gabbro–diorite associated with fine-grained, in part porphyritic leucocratic ...
Neda Tavakoli (6414950), Nahid Shabanian (6414956), Hossein Azizi (778332), Manfred Bernroider (6414965), Yoshihiro Asahara (6414962), Ali Reza Davoudian (6414953), Franz Neubauer (6414959)   +6 more
core   +1 more source

Petrology of the Skaergaard Layered Series

GEUS Bulletin, 2023
The Skaergaard intrusion is a layered, ferrobasaltic intrusion emplaced during the Early Eocene into the rifting volcanic margin of East Greenland.
Peter Thy, Christian Tegner, Charles E. Lesher   +2 more
doaj   +1 more source

Mortars From Punic and Hellenistic–Roman Solunto: Materials, Formulations, and Technology

Archaeometry, EarlyView.
ABSTRACT This study presents an archaeometric investigation of 18 hydraulic rendering and bedding mortars from Punic and Hellenistic–Roman Solunto (NW Sicily). The research aimed to characterize raw materials, reconstruct manufacturing sequences, and evaluate technological proficiency through mineralogical and petrochemical analyses.
G. Montana, G. Polizzi, C. Portale, M. Gasparo Morticelli, L. Randazzo   +4 more
wiley   +1 more source

Data for: Syncollisional Gabbro in the Irtysh Shear Zone, Eastern Kazakhstan: Compositions, Geochronology, and Geodynamic Implications

, 2020
Petrographical, mineralogical, geochemical, and geochronological studies reveal three mineralogically and chemically different types of gabbro intrusions in the Irtysh shear zone in Eastern Kazakhstan: (1) gabbrodolerite and dolerite, (2) enriched ...
Khromykh, Sergey, Khromykh, S (via Mendeley Data)   +1 more
core   +2 more sources