Results 51 to 60 of about 262 (200)
Brazilian Journal of Geology, 2020 Records of large crustal masses in the northwest of Borborema Province (BP) spread over more than 300 km are found as numerous granitic bodies amid a high-grade metamorphic gneissic-migmatitic terrain.
Paulo Sergio de Sousa Gorayeb +2 more
doaj +1 more source
Composition and Provenance of Victoria Group Sandstones in Southern North Victoria Land, Antarctica
New Zealand Journal of Geology and Geophysics, Volume 69, Issue 3, September 2026.Three distinct source areas contributed to sandstones of the Victoria Group within the Transantarctic Basin in southern North Victoria Land. During the Permian, quartzose sandstones were derived from erosion of the local Ross Orogen, likely from an uplifted swell in the area of today's Ross Sea, the Ross High.
Martin Elsner +6 more
wiley +1 more source
Геодинамика и тектонофизика, 2019 Eastern part of the Central Taimyr belt is composed of Precambrian rocks penetrated by granites of the Snezhnaya complex (845–825 million years) and later overlain by mid‐Neoproterozoic sin‐ postorogenic sedimentary deposits of the Stanovaya‐Kolosova ...
A. B. Kuzmichev +5 more
doaj +1 more source
Cryptic Superfine Placer Gold Populations, Round Hill Mine, Southern New Zealand
New Zealand Journal of Geology and Geophysics, Volume 69, Issue 3, September 2026.Superfine (50–<1 µm) detrital gold and platinum group mineral (PGM) particles at the Round Hill mine near Foveaux Strait were locally derived (<20 km) from as‐yet undefined basement sources. This superfine component contrasts with the dominant coarser (typically >100 µm) gold and PGM particles at the mine that have been transported for >100 km in ...
Marshall Palmer, Dave Craw
wiley +1 more source
Geophysical Prospecting, Volume 74, Issue 7, September 2026.ABSTRACT Integrated earth modelling aims to combine all available geoscientific information to derive one common earth model. However, combining multiple parameters in a meaningful way remains challenging. In this study, we aim to improve mineral exploration workflows through the integration of new magnetotelluric data with other geophysical and ...
Oskar Rydman +5 more
wiley +1 more source
The Vehmaa rapakivi granite batholith - An assemblage of successive intrusions indicating a piston-type collapsing centre [PDF]
Bulletin of the Geological Society of Finland, 2005 O. Selonen +3 more
doaj +1 more source
Geostandards and Geoanalytical Research, Volume 50, Issue 3, Page 601-624, September 2026.Key Points Measurement of 86Sr at count rates < 1500 cps can result in statistical bias. Non‐linear signals in analogue detection mode (e.g., Rb) present a challenge for accurately dating high 87Rb/86Sr mica (> 1000). Accounting for these considerations, high 87Rb/86Sr mica are dated here with accuracies of ∼ 1%.
Duane C. Petts +5 more
wiley +1 more source
Natural stone deposits in an assemblage of subhorizontal intrusions - The Kuru granite batholith [PDF]
Bulletin of the Geological Society of Finland, 2012 O. Selonen +3 more
doaj +1 more source
Porphyritic pyroxene-bearing granitolds - a strongly weathered rock group in central Finland
Fennia: International Journal of Geography, 1985 Intense preglacial weathering is associated with porphyritic pyroxene bearing quartz syenites, quartz monzonites, quartz monzodiorites and monzogranites, which form synorogenic stocks and batholiths in central Finland.
Seppo I. Lahti
doaj