Results 281 to 290 of about 83,284 (304)
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Interpreting geology from geophysics in poly-deformed and mineralised terranes; the Otago Schist and the Hyde-Macraes Shear Zone

New Zealand Journal of Geology and Geophysics, 2019
ABSTRACTOre deposits are formed by a variety of processes, and mineralised host rocks possess unusual petrophysical properties in contrast to un-mineralised country rock.
Casey C. Blundell   +5 more
openaire   +2 more sources

Development of Deep Shear Wave Velocity Profiles with Estimates of Uncertainty in the Complex Interbedded Geology of Christchurch, New Zealand

Earthquake Spectra, 2018
Deep (+500-m) shear wave velocity ( V S) profiles were developed at 14 sites throughout Christchurch, New Zealand, using a combination of active-and passive-source surface wave testing. The geology of Christchurch is complex and presents several challenges for surface wave testing.
David P. Teague   +3 more
openaire   +2 more sources

Integrated structural geology and geophysical analysis of crustal-scale shear zones in the Gawler Craton, South Australia

2021
This thesis was scanned from the print manuscript for digital preservation and is copyright the author. Researchers can access this thesis by asking their local university, institution or public library to make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
openaire   +2 more sources

“Shearing Phenomena at High Pressures of Possible Importance for Geology.” Journal of Geology, Vol. XLIV, pp. 653–669, 1936. By P. W. Bridgman.

GEOPHYSICS, 1936
Contributions from Bridgman’s high‐pressure laboratory at Harvard are always of interest. In the present article he discusses flow, and the shearing stresses necessary to produce flow under high pressure for a wide variety of substances. Rigidity, or the resistance to shearing stress, is one of the fundamental constants of the seismologist, and ...
openaire   +2 more sources

Quartz-Rich Fault Rocks as Potential High Purity Quartz Source (I) in a Sequence of the Central Cameroon Shear Zone (Etam Shear Zone): Geology and Structure

2018
The Etam shear zone is the NNE-SSE to NE-SW trending fault zone with coexistence of a sinistral shearing mylonitic corridor and a brecciated quartz vein. The mylonitic zone is evidence of progressive deformation. Primary minerals include Qtz1 + Kfs1 + Pl1 + Bt1.
Cyrille Sigue   +6 more
openaire   +2 more sources

Geology of the Achankovil Shear Zone, Southern India

Gondwana Research, 2001
Makoto Arima, M. Santosh, V.J. Rajesh
openaire   +2 more sources

Geology and geochemistry of Bukan iron ore deposits, Ductile Shear Zone, Northwest Iran

Neues Jahrbuch für Mineralogie - Abhandlungen, 2021
Pooran Karimi   +3 more
openaire   +1 more source

Early Proterozoic Leptite and Halleflinta (Tuff and Tuffite) Sequences of Southern Finland Reinterpreted as Shear Zones: Significance to Lake Superior Geology

1995
Many Early Proterozoic volcanogenic sequences in southern Finland and adjacent Sweden have long been interpreted as bedded tuffs and “tuffites” (i.e., epiclastic volcanic sediments), and commonly have been called leptites and halleflintas. While definitions of these unfamiliar terms vary, even in Fennoscandinavia, leptites and halleflintas can be ...
Jukka S. Marmo, Richard W. Ojakangas
openaire   +2 more sources

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