Areal mineral maps are constructed from the polished sections of particles that settle to bottom epoxy resin. However, heavy minerals can preferentially bottom, making surface rich in minerals. Therefore, will become biased estimates volumetric (3D) map. The study aims test whether any vertical cross-section (any section along settling direction particles) be an unbiased estimate 3D map a chrom...

Introduction The mineralization at Waterfall Gorge was first exploited in 1865 for its copper. In 1908 nickel was reported in the ore, and in 1950s PGEs were reported (Maske and Cawthorn, 1986). Quantitative data on all these metals was presented by Lightfoot et al. (1984). Despite subsequent exploration no further economic resources have been defined, although geochemical modeling suggests the...

An electron microprobe study has been carried out on platinum-group minerals, accessory phases, and chromite in several chromite deposits of the Alapaevsk ophiolite (Central Urals, Russia) namely the Bakanov Kluch, Kurmanovskoe, Lesnoe, 3-d Podyony Rudnik, Bol’shaya Kruglyshka, and Krest deposits. These deposits occur in partially to totally serpentinized peridotites. The microprobe data shows ...

Research subject. The transformed clastic ores (ore diagenites) of the Ishkinino Co-bearing massive sulfide deposit hosted by serpentinites Main Uralian Fault Zone. Materials and methods. structures textures were stu died. trace element contents sulfides oxides determined using LA ICP MS. physical chemical modeling diagenetic formation accessory As minerals was conducted Selektor program packag...

Introduction: More than 80 L-chondritic fossil meteorites were found in Middle Ordovician limestone in the Thorsberg quarry at Kinnekulle in southern Sweden [1, 2]. All meteorite-bearing sediment beds at Thorsberg contain sediment-dispersed extraterrestrial chromite (SEC) grains of L chondrite composition [3]. Similar SEC grains were also found in several correlated sediment beds of other quarr...