John F . Slack results 13
· Newest (Page 1/1, per page 25)
Author: John F . Slack ×Clear All Filters
Search Results
Metallogeny of the Mesoproterozoic Belt-Purcell Basin, Northern Rocky Mountains, USA-CanadaNARA Subscribed
Metasedimentary rocks of the Mesoproterozoic Belt Supergroup in the United States and correlative Purcell Supergroup in Canada contain diverse types of mineral deposits with a variety of commodities including base metals, precious metals, and critical metals. The economically most important deposits (≥ 10 Mt past production + reserves + resources) are stratabound Pb–Zn–Ag ores at the Sullivan mine in southeastern British Colum...
Targeting Ecosystem Features for Conservation: Standing Crops in the Florida EvergladesNARA Subscribed
The Everglades in southern Florida, U.S.A., is a major focus of conservation activities. The freshwater wetlands of the Everglades do not have high species richness, and no species of threatened aquatic animals or plants live there. We have, however, identified a distinctive ecological feature of the Everglades that is threatened by canal construction, draining, and nutrient enrichment from agricultural runoff. Compared to val...
Previous1Next