The Earth's sole active carbonatite volcano, Oldoinyo Lengai (Tanzania), is presently erupting unique natrocarbonatite lavas that are characterized by Na- and K-bearing magmatic carbonates of nyerereite [Na2Ca(CO3)2] and gregoryite [(Na2,K2,Ca)CO3]. Contrarily, the vast majority of older, plutonic carbonatite occurrences worldwide are dominated by Ca-(calcite) or Mg-(dolomite)-rich magmatic car...

Abstract Hydrogeological properties of fluid reservoirs in the brittle continental crust at 5 km have been deduced from hydraulic and chemical data provided by Deep Heat Mining well Basel-1 south Upper Rhine rift valley (central Europe, Switzerland). The investigation was challenging because no direct temperature logs or samples undisturbed reservoir exist. However, reliably reconstructed short...

The Hida granites, classified into the pre–Jurassic and Jurassic plutons in this study, are important components of belt, which is a Paleozoic–Mesozoic basement Japan arc underwent Permian to Triassic metamorphism during collision between North South China blocks. This study performed zircon U–Pb dating whole–rock geochemical analyses for granites from major plutonic bodies reveal geotectonic h...

We present the results of U-Pb zircon dating conducted using laser ablation-inductively coupled plasma mass spectrometry (LA-ICP-MS), isotopic tracing analyses Hf in and Sr-Nd whole-rock major oxides, trace element abundances 12 plutonic volcanic rocks on Antarctic Peninsula. The dataset is presented combination with previous studies both Patagonia These were filtered for concordant 206Pb–238U ...

kuh- e -zar gold deposit located 35 km west of torbat-e-heydaryeh, (khorassan e- razavi province), east of iran. this deposit is a specularite-rich iron oxide type (iocg). this mine is situated within khaf-bardascan volcanic plutonic belt. based on recent exploration along this belt, several iocg type system plus kuh-e-zar deposit are discovered. in the study area, several type of tuff and lava...

gomish-tappeh zn-pb-cu (ag) deposit is located 90 km southwest of zanjan, in northwestern part of urumieh-dokhtar volcano-plutonic zone. exposed rocks at the area include oligo-miocene volcano-sedimentary and sedimentary sequences as well as pliocene volcano-plutonic sequence (andesite porphyry dykes, dacitic subvolcanic dome and rhyodacitic volcanics). alteration in the deposit developed as si...