neyshabour turquoise mine is located in northwest of neyshabour, southern quchan volcanic belt. eocene andesite and dacite forming as lava and pyroclastic rocks cover most of the area. subvolcanic diorite to syenite porphyry (granitoids of magnetite series) intruded the volcanic rocks. both volcanic and subvolcanic rocks are highly altered. four types of alteration are recognized including: sil...

Undoubtedly, involving more tools, datasets, and techniques for detecting the mineralized areas sharply narrow zones to be investigated delivered, in most cases highly potential zones. Consequently, this study is an attempt apply remote sensing data including Sentinel 2 ASTER, field observations, petrography of hydrothermal alteration processes, ore microscopic investigations, X-ray examination...

Aeroradiometric data of part Lower Benue Trough Nigeria was interpreted in order to ascertain the mineral potentials area. The four half-degree radiometric sheets used for this study (sheet 288, sheet 289, 302 and 303) were acquired from Geological Survey Agency (NGSA). radioelement composite map, equivalent ratios ternary maps generated using Oasis Montaj 8.4 ArcGIS software. High Potassium co...

The horn sharks (Heterodontidae: Chondrichthyes) represent one of four independent evolutions of durophagy in the cartilaginous fishes. We used high-resolution computed tomography (CT scanning) to visualize and quantify the mineralized tissue of an ontogenetic series of horn sharks. CT scanning of neonatal through adult California horn sharks (Heterodontus francisci) confirmed that this techniq...