Mineral & Energy Resources of the Pacific Northwest

Resources may or may not be exploitable due to _____________________. I. Introduction Resources: what are geologic resources? An _____________________________________ _____________________________________ Resources may or may not be exploitable due to _____________________.

I. Introduction B. Types of Resources Mineral

I. Introduction B. Types of Resources 2. Energy Alternatives 

I. Introduction 3. Water Drinking, irrigation, hydroelectric, recreation surface water  groundwater 

I. Introduction 4. Soil

I. Introduction C. Reserves and Economics Reserves =

Reserves Factors that determine profitability  _____________ and ____________________ occurrence  _______________________________ ____________ & _______________ to market

I. Introduction D. Mining Districts An area described for legal purposes and containing valuable minerals in payable amounts. Term originated from need of self government & regulation (laws) prior to statehood (in the western states)

Coeur d’Alene District, northern Idaho Mining Districts Coeur d’Alene District, northern Idaho _____________________ (ID still a territory) “________________” mining district

Coeur d’Alene District Since 1886 +1 billion ounces Ag +8 million tons Pb +3 million tons Zn Cu, Sb, Cd, etc… over 90 mines in district

II. Pac NW Resources Placer Gold _______________  1884 “rush”, ~10,000 population (Spokane, 1882 ~1000)

II. Pac NW Resources B. Metal Veins  ___________________ veins 1. History ______________________ ________  Tiger mine in Burke, Polaris, Bunker Hill prospectors vs. corporations labor wars

Coeur d’Alene Veins 2. Geology massive _______________ into __________ Example  Morning Star mine 4000’ strike x 50’ wide x 6700’ deep! How did these form? Deep, _________________ invade _________ along the _____________________ fault zone

II. Pac NW Resources C. The Sullivan Mine Kimberly, B.C. massive _________________ deposit formed on ____________________  _______________________

II. Pac NW Resources D. Butte, Montana  “the Richest Hill on Earth” _________________ discovered in _________ _______ discovered in veins (and ______) ________ of no value until the 1880’s  why? 1920’s  world’s leading Cu producer  ________________ Mining Company

Butte & the Berkeley Pit Geology of Butte large ___________________________ from ________________________ (Boulder batholith ~70-90 Ma) _________ & __________________ “halo” mineralization

Porphyry Copper System

Butte & the Berkeley Pit Mining Methods Early years  __________________ following high-grade veins Later years  _____________ after low-grade disseminated The ___________________  large open pit

II. Pac NW Resources E. Republic Mining District, Washington ______________ in underground ______________ From ___________________________ associated with _______________ activity  heated groundwater

II. Pac NW Resources F. Other Notables _______________, Lake Chelan  Cu-Au-Zn, ancient island arc volcano ________________  Pb-Zn-Ag found in limestone beds of Cambrian Metaline Fm.

II. Pac NW Resources G. Coal Deposits *Eocene ____________ & ______________

II. Pac NW Resources H. Uranium Stevens & Spokane counties ________________ (Dawn Mining Company) ________________

II. Pac NW Resources What’s our most abundant resource?