Results 11 to 20 of about 3,709 (226)
Tool for similarity identification of rapakivi granites in heritage buildings
Journal of Cultural Heritage, 2022 Zina-Sabrina Duma +5 more
semanticscholar +3 more sources
Geologia e Geoquímica do Batólito Rapakivi Rio Branco, SW do Craton Amazônico - MT [PDF]
Geologia USP. Série Científica, 2007 O Batólito Rapakivi Rio Branco está inserido no Domínio Tectônico Cachoeirinha, parte da Província GeocronológicaRio Negro-Juruena, localizado na porção sudoeste do Craton Amazônico em Mato Grosso.
Larissa Marques Barbosa de Araújo-Ruiz +4 more
doaj +5 more sources
Sediment Characteristics in Stonewort <i>Chara Tomentosa</i> Assemblages. [PDF]
Ecol EvolThe study investigated sediment characteristics associated with Chara tomentosa. The results show that sediment grain size and the concentration of the dissolved phosphate in the porewater differ in the seafloor areas characterised by C. tomentosa from adjacent areas at similar depth, but without charophytes.
Puttonen I +3 more
europepmc +2 more sources
Age and Geochemical Characteristics of Nansu Rapakivi Granite in Jiaobei Uplift Belt, Qingdao
Global Journal of Earth Science and Engineering, 2022 LA-ICP-MS zircon U-Pb geochronology from Nansu large Rapakivi granite in the Jiaobei uplift belt shows the concordant age is 116.5±0.32Ma and the weighted average age is 116.7±0.89Ma, belonging to the late Yanshanian products of Early Cretaceous.
Feng Qiao +4 more
openalex +3 more sources
Earth's anomalous middle-age magmatism driven by plate slowdown [PDF]
Scientific Reports, 2022 The mid-Proterozoic or "boring billion" exhibited extremely stable environmental conditions, with little change in atmospheric oxygen levels, and mildly oxygenated shallow oceans.
C. O’Neill +3 more
doaj +2 more sources
Geologia USP Série Científica, 2022 A Suíte Intrusiva São Lourenço-Caripunas (1,32 – 1,30 Ga), na região do distrito mineiro São Lourenço-Macisa (NW da Província Estanífera de Rondônia), inclui granitos rapakivi e rochas associadas, que são reunidas em quatro unidades ígneas mapeadas na ...
Marly Aparecida da Silva +4 more
semanticscholar +5 more sources
Fluid history from crystal cavities in rapakivi, Pyterlahti, southeastern Finland [PDF]
Bulletin of the Geological Society of Finland, 1987 The crystal cavities lined with quartz, feldspars, biotite, fluorite and a number of accessory phases occurring in the Haikonvuori pyterlite quarry in the Wiborg rapakivi massif were studied with mineralogical, petrographical and chemical methods ...
K. Kinnunen, K. Lindqvist, R. Lahtinen
doaj +2 more sources
Geologia USP Série CientíficaThe Southwestern Amazonian Craton, in Rondônia state, Brazil, comprises multiple orogens with ages ranging from 1.8 to 1.0 Ga, where successive magmatic, metamorphic, and deformational processes reworked ancient rocks and produced new complexes and ...
Luíza Almeida Villar de Queiroz +8 more
openalex +3 more sources
Miarolitic cavities in rapakivi granite on Hästholmen, Loviisa, southeastern Finland [PDF]
Bulletin of the Geological Society of Finland, 1987 Miarolitic cavities are described from drill cores taken from rapakivi granite on Hästholmen, an island about 80 km east of Helsinki. The distribution of cavities between different textural types of rapakivi seems to favour the equigranular medium to ...
K. Lindqvist, V. Suominen
doaj +2 more sources
Geochronology of the Suomenniemi rapakivi granite complex revisited: Implications of point-specific errors on zircon U-Pb and refined λ87 on whole-rock Rb-Sr [PDF]
Bulletin of the Geological Society of Finland, 2015 Multi-grain isotope dilution and secondary ion microprobe zircon U-Pb as well as wholerock Rb-Sr isotope dilution data on the late Paleoproterozoic Suomenniemi rapakivi granite complex (exposed on the northern flank of the Wiborg batholith in ...
O.T. Rämö, I. Mänttäri
doaj +2 more sources