Results 91 to 100 of about 9,445 (214)
Petrography and Geochemistry of the Gabbro Lake Sill, Superior Province, Northwest Ontario [PDF]
, 1975 A gabbroic intrusion within the Wabigoon Greenstone Belt, southeast of Dryden Ontario, was studied and mapped. Petrographic examination of the sill was carried out and geochemical whole rock data was obtained using X.R.F. methods.
McMaster, Glenn
core +1 more source
Co-mingled gabbro-granite (Ollie Gates)
, 2019 Co-mingled gabbro-granite (Ollie Gates)https://digitalmaine.com/mgs_geologic_field_photos/6229/thumbnail ...
core +1 more source
Characteristics of ∼40 Ma Mafic Rocks in North Tibet and Their Tectonic Implications
Geochemistry, Geophysics, GeosystemsSeveral magmatic belts are present in the Tibetan Plateau. Among these, the Qiangtang magmatic belt in North Tibet remains elusive. In particular, the petrogenesis, magma source, and tectonic implications of the ultramafic to mafic rocks in the North ...
Shifeng Wang +3 more
doaj +1 more source
Granite-gabbro mixing near Norton Pt. (8)
, 2019 Granite-gabbro mixing near Norton Pt.
Marvinney, Robert G
core
DIFFERENT GEOCHEMICAL SIGNATURES DEVELOPED IN BASIC MAGMATIC ROCKS OF MT. KALNIK (NORTH CROATIA)
Rudarsko-geološko-naftni Zbornik, 2004 Basic magmatic rocks of Mt. Kalnik experienced hydrothermal alteration and low grade metamorphism. In such circumstances the most useful tracers of their magma sources and tectonic settings are REE patterns and other normalized trace element abundance ...
Maja Vrkljan, Vesnica Garašić
doaj
Clayters Beach - Granite-gabbro magma mixing
, 2019 Clayters Beach - Granite-gabbro magma mixinghttps://digitalmaine.com/mgs_geologic_field_photos/6154/thumbnail ...
Marvinney, Robert G
core
, 2010 Gabbro samples (c. < 0.4 Ma old) dredged from close to the ‘Vityaz Megamullion’ on the slow-spreading Northern Central Indian Ridge (NCIR, 18–22 mm yr−1) include mostly olivine gabbro and Fe–Ti oxide gabbro.
DOMINIQUE WEIS +3 more
core +1 more source
A multidisciplinary investigation of the Notträsk Gabbro, northern Sweden
, 1985 The differentiated, sulfide-bearing gabbro near the city of Boden in northern Sweden has been investigated in order to get a plausible model for its formation, shape and age.
Elming, Sten-åke, +2 more
core +1 more source
Study on seismic response of gabbro rock slope based on the back slope effect
Frontiers in MaterialsIntroductionThe Back Slope Effect (BSE) describes the tendency of slopes facing seismic wave propagation (back slopes) to suffer more landslides than slopes facing the opposite direction (front slopes). Despite its importance in seismic hazard assessment,
Lei Zhang +6 more
doaj +1 more source
Paleomagnetism of the 1180 Ma Grenvillian Umfraville gabbro, Ontario
, 1978 The 1180 ± 20 Ma Umfraville gabbro is a slightly metamorphosed stock in the Grenville Province. It was sampled at 17 sites (183 specimens). After alternating field and thermal demagnetization the gabbro retains the same very stable remanent ...
D. T. A. Symons
core +1 more source