Results 161 to 170 of about 884,714 (212)

Geology and petrography of Sabon Garin Kara and environs part of Malumfashi sheet 79 NE Nigeria

Journal of Geology and Mining Research, 2019
The study area is about 40 km2 that is (8 km × 5 km) which is located in Gwarzo Local Government area of Kano State part of  Malumfashi sheet 79NE which lies within Longitude E07°57’19.5” and E08°00’00” and Latitude N11° 51’30”andN11°47‘00.
Ahmed Abubakar Sarki, M. Kwaya, Nasir Abdullahi Maiauduga, T. A. Adedokun, Y. Muhammad, Abubakar Nasir Karofi, A. Maigari   +6 more
semanticscholar   +1 more source

Formation of slaty cleavage along a temperature gradient

, 2018
(1) Institute of Geological Sciences, University of Bern, Bern, Switzerland (ismay.akker@geo.unibe.ch), (2) Structural Geology, Tectonics and Geomechanics, Energy and Mineral Resources Group, RWTH Aachen University, Aachen, Germany, (3) Structural ...
Ismay Vénice Akker, J. Urai, A. Berger, J. Klaver, M. Herwegh, G. Desbois   +5 more
semanticscholar   +1 more source

The contact aureole of the South Mountain Batholith in Halifax, Nova Scotia; geology, mineral assemblages, and isograds

, 2012
The contact aureole at the eastern margin of the South Mountain Batholith (Halifax Pluton) underlies most of the city of Halifax, Nova Scotia. The Halifax Group in the study area includes two lithological units, the Cunard and Bluestone formations ...
R. Jamieson, G. Hart, G. Chapman, N. Tobey   +3 more
semanticscholar   +1 more source

An investigation into the environment of formation of the volcanic-hosted Mt. Lyell copper deposits using geology, mineralogy, stable isotopes, and a six-component chlorite solid solution model

, 1981
The Mt. Lyell copper deposits occur within 10 km 3 of hydrothermally altered, calc-alkaline felsic pyroclastics and lavas that form the overturned, steeply west-dipping limb of a north-south-trending anticline within the Mt.
J. Walshe, M. Solomon
semanticscholar   +1 more source

Sedimentology, structural geology, and tectonics of the Shikoku subduction zone, southwestern Japan

, 1976
The Shikoku subduction zone is developed along the Nankai Trough where the Philippine plate is underthrust beneath the Asian plate. The landward wall of the Nankai Trough consists of horizontal parallel ridges and basins that trend northeastward.
J. Moore, D. Karig
semanticscholar   +1 more source

The Rock Elm meteorite impact structure, Wisconsin: Geology and shock-metamorphic effects in quartz

, 2004
The Rock Elm structure in southwest Wisconsin is an anomalous circular area of highly deformed rocks, ∼6.5 km in diameter, located in a region of virtually horizontal undeformed sedimentary rocks.
B. French, W. S. Cordua, J. Plescia
semanticscholar   +1 more source

Geology of the Idonnappu Belt, central Hokkaido, Japan: Evolution of a Cretaceous Accretionary Complex

, 1992
The Cretaceous Idonnappu Belt, located along the western Hidaka Mountains of central Hokkaido Island in Japan, records evidence of west to northwest directed underthrusting of oceanic crust.
S. Kiyokawa
semanticscholar   +1 more source

GEOLOGICAL AND GENETIC INTERPRETATION OF THE PETROPHYSICAL HETEROGENEITY OF THE BLAGODATNOYE GOLD-SULPHIDE DEPOSIT (YENISEI RIDGE)

GEOLOGY AND MINERAL RESOURCES OF SIBERIA
Geophysical setting of the Blagodatnoye deposit is caused by the combination of petrophysical heterogeneities of various stages of its development. Differentiation of dislocation metamorphism zones which carried out structural control of mineralization ...
Y. Kolmakov, A. M. Sazonov, A. F. Lazarev, A. Y. Kolmakov, V. G. Fedorov   +4 more
semanticscholar   +1 more source

New information on Neoproterozoic-Cambrian geology and the Triassic unconformity around Groby, southern Charnwood Forest, UK

, 2012
Summary Detailed investigations utilizing borehole drilling, geophysical techniques and revision mapping have elucidated the geological evolution of southern Charnwood Forest.
P. Scotney, J. Carney, M. Harwood
semanticscholar   +1 more source

Geology of St. John, U.S. Virgin Islands

, 2002
The rocks of St. John, which is located near the eastern end of the Greater Antilles and near the northeastern corner of the Caribbean plate, consist of Cretaceous basalt, andesite, keratophyre, their volcaniclastic and hypabyssal intrusive equivalents ...
D. Rankin
semanticscholar   +1 more source