Deformation of continental crust along a transform boundary, Coast Mountains, British Columbia [PDF]
New structural, paleomagnetic, and apatite (U-Th)/He results from the continental margin inboard of the Queen Charlotte fault (~54°N) delineate patterns of brittle faulting linked to transform development since ~50 Ma.
Bogue, Scott W.+4 more
core +1 more source
Boletín Geológico has published issue 48(1), June 2021, with articles on economic geology, structural geology, and basin evolution (Figure 1). Arrubla & Silva characterize and classify the gold ore mineral occurrences related to the main intrusive ...
Mario Maya Sánchez
doaj
Episodic Lithospheric Deformation in Eastern Tibet Inferred From Seismic Anisotropy
Mechanisms for uplift and deformation of the Tibetan Plateau remain vigorously debated; hypotheses include stepwise growth, distributed thickening, and crustal channel flow, each with a distinct anisotropic signature.
Xuewei Bao+4 more
doaj +1 more source
Scale-dependent influence of pre-existing basement shear zones on rift faulting : a case study from NE Brazil [PDF]
Rifting of continental crust initiates faults that are commonly influenced by pre-existing structures. We document newly identified faults cutting Precambrian units in the interior of the NE Brazilian margin to assess the effects of structural ...
Bezerra, Hilario+6 more
core +1 more source
Deep ductile shear localization facilitates near-orthogonal strike-slip faulting in a thin brittle lithosphere [PDF]
Some active fault systems comprise near-orthogonal conjugate strike-slip faults, as highlighted by the 2019 Ridgecrest and the 2012 Indian Ocean earthquake sequences.
Ampuero, Jean-Paul+2 more
core +1 more source
Determination of surface shear stress with the naphthalene sublimation technique [PDF]
Aeolian entrainment and transport are functions of surface shear stress and particle characteristics. Measuring surface shear stress is difficult, however, where logarithmic wind profiles are not found, such as regions around large roughness elements. An
Greeley, Ronald, Lee, J. A.
core +1 more source
Simulating spatial and temporal evolution of multiple wing cracks around faults in crystalline basement rocks [PDF]
Fault zones are structurally highly spatially heterogeneous and hence extremely complex. Observations of fluid flow through fault zones over several scales show that this structural complexity is reflected in the hydrogeological properties of faults ...
Anderson+39 more
core +1 more source
PAVLO STEFANOVICH VORONOV — OUTSTANDING POLAR GEOLOGIST (to the 100th anniversary of birth)
The article is dedicated to the outstanding geologist-polar explorer of the USSR, an outstanding naturalist, doctor of geological and mineralogical sciences, Professor Pavel Voronov in the light of 100th anniversary of his birth celebration.
N.N. Shatalov
doaj +1 more source
Geology of the Northern Llano Uplift, Junction to Llano, Texas [PDF]
This year\u27s Texas Academy of Science Geology Field Trip will visit nine interesting locations in two different areas in the Texas Hill Country (Figure 1). In the first area we will look at the Cretaceous stratigraphy around Junction, Texas (Figures 1,
Barker, Chris, Nielson, R. LaRell
core +1 more source
Frictional behavior of talc-calcite mixtures [PDF]
Faults involving phyllosilicates appear weak when compared to the laboratory-derived strength of most crustal rocks. Among phyllosilicates, talc, with very low friction, is one of the weakest minerals involved in various tectonic settings.
Carpenter, B. M.+2 more
core +1 more source