1.0 INTRODUCTION Active and fossil hot springs systems occur worldwide, and share many common characteristics that indicate similar genetic histories (White 1955; Waring 1965; Rhinehart 1980; White 1981; Bowen 1989). This research studies the occurrence and characteristics of hot springs at Steamboat Springs, Nevada using Airborne Visible/Infrared Imaging Spectrometer (AVIRIS) data. Both highan...

Genetic programming is used to evolve mineral identification functions for hyperspectral images. The input image set comprises 168 images from different wavelengths ranging from 428 nm (visible blue) to 2507 nm (invisible shortwave in the infrared), taken over Cuprite, Nevada, with the AVIRIS hyperspectral sensor. A composite mineral image indicating the overall reflectance percentage of three ...

Porphyry and epithermal deposits are important sources of base precious metals. Most actively mined have been exhumed such that ore bodies relatively close to the surface therefore locatable economic extract. Identifying characterizing concealed deposits, particularly more deeply buried porphyry represents a far greater challenge for mineral exploration, will become progressively as near-surfac...

Percolation experiments, using columns filled with alternating layers of hydrated Portland cement and crushed sedimentary rocks, were conducted at PCO2 = 10 bar 60 °C. Limestone, sandstone marl representative reservoir cap rocks for a geologic CO2 storage site. The injected solution was equilibrium gypsum equilibrated the CO2. main reactions dissolution calcite that constitutes hydrotalcite por...