Results 151 to 160 of about 279,026 (300)

A geophysical investigation of the Roter Kamm impact crater, Namibia

Meteoritics &Planetary Science, EarlyView.
Abstract The Roter Kamm impact crater is located in the southern Namib Desert. The crater has a diameter of 2.5 km and belongs to the category of simple, bowl‐shaped impact craters, with an elevated rim of fractured target rock. The crater's interior is completely buried beneath sediments, preventing extensive surface investigations of the bedrock ...
Hannah Nienhaus, Pritam Yogeshwar, Wiebke Mörbe, Bülent Tezkan, Yajun Liu, Bufelo Lushetile, Martin Melles   +6 more
wiley   +1 more source

Study on Damage and Tensile Properties of Thermal-Treated Granite Under Different Thermal Shock Conditions. [PDF]

Materials (Basel)
Li K, Zhao X, Wang H, Li D, Dang D, Xi Y.   +5 more
europepmc   +1 more source

Hong Kong is an impact crater: Proof from the geomorphological and geological evidence [PDF]

Hong Kong is a city in southern China. The urban districts of Hong Kong, Kowloon, and Victoria Harbour are situated within Hong Kong. Hong Kong is surrounded by mountains with a diameter of 11 km. Three million people live inside the basin.
Chan, Chu-Lok, Luo, Xiuquan, Wu, Siben
core   +1 more source

Static recrystallization of shocked calcite in Ries impact breccias

Meteoritics &Planetary Science, EarlyView.
Abstract Calcite is prone to chemical and microstructural modifications, especially after having been strained at high stresses and strain rates, as during hypervelocity impact events. These modifications include precipitation from pore fluid as well as replacement of strained volumes by recrystallization. In calcite aggregates of a metagranite breccia
Claudia A. Trepmann, Fabian Dellefant, Lina Seybold, Wolfgang W. Schmahl, Elena Sturm, Daniel Weidendorfer, Sandro Jahn, Iuliia V. Sleptsova, Stuart A. Gilder   +8 more
wiley   +1 more source

From problematic soil to engineered fill: Transforming granite residual soil with clay improvement. [PDF]

PLoS One
Dang F, Guo H, Wang Y, Li W, Jiang H, Fu J.   +5 more
europepmc   +1 more source

Microspherules Formed by Lightning Strikes

Meteoritics &Planetary Science, EarlyView.
Abstract Natural microspherules are formed by high‐temperature processes and are present throughout the geologic record to the present day. We report the discovery of large numbers of microspherules recovered from a rock pavement in the Pilbara region, Western Australia.
M. R. Boyd, M. J. Genge, A. G. Tomkins
wiley   +1 more source

Active artisanal mining-induced radiogenic hazards: insights from radiogeochemistry of Wamba Areas, north-central Nigeria. [PDF]

Sci Rep
Adewumi T, Adegoke BA, Faweya BE, Akingboye AS, Kwaghhua FI, Adeeko TO, Okwokwo OI.   +6 more
europepmc   +1 more source

Feasibility study of the ultraviolet spectral analysis of the lunar surface [PDF]

Ultraviolet spectral analysis of granite, gabbro, and serpentinite samples to determine feasibility of mapping surface composition of ...
Burkig, V. W., Greenman, N. N., Gross, H. G., Young, J. F.   +3 more
core   +1 more source

Confirmation of the impact origin of the Late Ordovician Tvären impact structure (southeast Sweden) and emplacement of impactites in a marine setting

Meteoritics &Planetary Science, EarlyView.
Abstract The Tvären structure in southeastern Sweden has been listed as a confirmed marine‐target impact structure for decades. However, to date, no measurements and/or indexed data of planar deformation features in quartz grains from the structure have been published or any other unequivocal evidence of impact.
Katarzyna J. Gajewska, Sanna Alwmark, Mikael Calner, Sylvain Richoz, Jens Ormö, Erik Sturkell, Carl Alwmark   +6 more
wiley   +1 more source

Geological, geomorphological, and environmental insights into the Neoproterozoic Aswan granites, Egypt: remote sensing and radiological assessment. [PDF]

Sci Rep
El Bahariya GA, Salem IA, Saleh GM, Ibrahim EM, Mohamed SE, El Sarrag A, Shebl A.   +6 more
europepmc   +1 more source