The enigmatic Bøggild intergrowth in iridescent labradorite crystals was revisited light of recent work on the incommensurately modulated structures intermediated plagioclase. Five igneous samples and one metamorphic sample with various compositions lamellar thicknesses were studied this paper. textures characterized conventional transmission electron microscopy (TEM) scanning (STEM). individua...

Small-scale domes with circumferential aprons and concentric aureoles in western Arcadia Planitia (34–41°N, 167–179°E) near Tyndall crater were examined using a suite of datasets including CRISM, THEMIS IR, HiRISE, CTX. Previous studies based primarily on photogeologic evidence suggested that these analogous to terrestrial felsic cryptodomes extrusive lava domes. The have also been CRISM visibl...

10 11 We measured the self-potential (SP) response to advective transport of KCl 12 concentration fronts through two laboratory-scale sand-bodies with different 13 mineralogical composition. In pure quartz sand, the amplitude and polarity of the SP 14 signals agreed with a previously published model. In sand containing 3 % potassic 15 feldspars and 1 % micas and clays, the shape of the SP respo...

Introduction. The Mócs meteorite is L5-type chondrite, which fell in 1882, Kolozs county. The meteorite major modal composition are: olivine, pyroxene, plagioclase feldspars, and opaque minerals. The meteorite is highly fractured, and shock induced veins are also discernible. The fractures are filled by iron rich material. The sample contains shock-metamorphic effects (especially in olivine), s...

ABST RACT: The mineralogical and geochemical characteristics of Eocene continental sediments in south central Tunisia (Chebket Bouloufa and Jebel Hamri) and in north central Tunisia (Jebel Lessouda and Jebel Rhéouis), which contain considerable amounts of palygorskite, were studied. The clay fraction of the sediments also comprises illite, kaolinite, Mg smectite and Al smectite, together with c...

As part of the “generalized Nihewan Basin”, Huailai basin has recently attracted archaeologists’ attention. Ten Paleolithic sites were found in this 2014; among these, Zhuwobu site is oldest―dated to 504 ± 76 ka using electron spin resonance (ESR) dating method. This study redated multiple elevated temperatures (MET) post infrared (pIR) stimulated luminescence (IRSL) procedure (MET-pIRIR) on bo...

The study aimed to find the origin of high lithium content groundwater in southeast Hungary. To be concerned with assessing economic potential these waters, it is necessary investigate lithium-releasing geochemical processes. For this purpose, granite and pegmatite samples were analysed for alteration from various Battonya Complex locations. key processes are chloritisation biotite sericitisati...