Results 51 to 60 of about 232 (180)
: Syn-orogenic Neoproterozoic granitic magmatism (ca. 630-600 Ma) in southern Brasília Orogen includes large batholiths of compositionally expanded high-K calc-alkaline granites (lato sensu) and small occurrences constituted by anatetic leuco-granites ...
Andrés Fabián Salazar-Naranjo +1 more
doaj +1 more source
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
Gully erosion in India: Geo‐environmental controls and region‐specific characteristics
Spatial statistical analyses using a novel spatial database of India‧s gully erosion landforms revealed that India has six major gullying‐affected regions, three of which (EU, DU, and KCH) are dominated by gully systems (gully networks), with badlands (vast intensely gullied landscapes) being predominant in the other three regions (YB, GP, and RU ...
Anindya Majhi +3 more
wiley +1 more source
The first openly accessible 2 m‐resolution lidar‐based DTM and an extensive set of land‐surface parameters (LSPs) for the region of São Sebastião and Ilhabela, southeastern Brazil, reveal geomorphological features previously indiscernible, including past landslide deposits, drainage captures and structural lineaments.
Rebeca Durço Coelho +3 more
wiley +1 more source
Dating C/S Structures in Syntectonic Granites by In Situ Rb‐Sr Analyses on Muscovite
ABSTRACT The interplay of crystallisation, deformation and fluid–rock interactions makes deciphering geochronological information complex in syntectonic granites. In this study, we apply in situ Rb‐Sr analyses to selected samples from the Questembert Variscan syntectonic granite in Western France, which was emplaced along the South Armorican Shear Zone
Philippe Boulvais, Romain Tartèse
wiley +1 more source
Microorganisms perform essential functions in Arctic terrestrial ecosystems. Yet, their ecology and biogeography are poorly understood, despite being necessary to predict microbial responses to future climate change. Here, we provide the first large‐scale floristic and biogeographic study of the moss diatom flora in the tundra regions of the North ...
Charlotte Goeyers +6 more
wiley +1 more source
Sr isotopic composition of Finnish rapakivi granites: the Suomenniemi batholith [PDF]
T. Rämö
doaj +1 more source
Abstract Beech forests in Central Europe are frequently the focus of entomological studies targeting saproxylic beetle species that depend on deadwood. However, considerably less attention has been paid to non‐saproxylic beetle species. Our research aimed to address this gap by focusing on the diversity and abundance of functional guilds of non ...
Václav Zumr +2 more
wiley +1 more source
Porphyritic pyroxene-bearing granitolds - a strongly weathered rock group in central Finland
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
Conceptual diagram of hydrological and geochemical processes within the Santa Elena Ophiolite, Costa Rica. It highlights watershed cross‐sections, soil genesis, hyperalkaline Type II waters (pH > 11.6) with calcite crust and trapped H2/CH4 gases, seepage into surface waters, storm‐impacted stream profiles, weathered vs.
Alexandra May +8 more
wiley +1 more source

