St. Catharines 2004
Technical Program

SS19:  Molecules to Planets: Infrared spectroscopy in geochemistry, exploration geochemistry and remote sensing 
Organizers / Organisateurs:  Penny King, Mike Ramsay, Gregg Swayze
Room / Salle:  AS 201

Date:  05/12/2004
Time:  11:00 AM
Presenter:  Sandra L. Perry

Review of airborne and orbiting remote sensing systems applied to worldwide mineral exploration case histories focused on infrared (IR) spectroscopy

Perry, S.L. Perry Remote Sensing, LLC, 22 Sedgwick Drive, Englewood, CO, USA, 80113,

Remote sensing systems have become an operational and vital part in worldwide exploration for ore deposits. Mineral exploration companies are faced with significant economic hurtles, time constraints, and international politics, which together demand quick assessment and field mobilization to all parts of the world.  Remote sensing technology offers a range of reliable and timely solutions necessary for regional reconnaissance, district-level analysis, and field logistics. Those satellite and airborne systems offering visible and near infrared (VNIR) and short-wave infrared (SWIR) wavelength bands allow for prediction of surface alteration and mineral identification. Particularly useful in arid, semi-arid, and temperate terrain, airborne and orbiting sensors with SWIR bands detect alteration minerals and mineral mixtures associated with primary syngenetic/epigenetic and secondary, near-surface mineral deposits. Coupled with image georectification to specific map bases, these sensors provide intelligent alteration mineral maps that vastly reduce the cost and time involved in field geologic investigation. Case histories using currently available and fully operational sensors demonstrate the ability of remote sensing systems with SWIR capability to predict and map alteration minerals and mineral mixtures, critical to mineral exploration surveys.