Historic Bayhorse mining district millsite in foreground to thick dolostone cliffs of disputed age--either Lower Ordovician or Neoproterozoic, a difference in interpretations of about 100 million years ago. The Bayhorse Mining district was one of the longest-running silver and lead producers in Idaho.
Karen Lund
Karen Lund is a Research Geologist with the Geology, Geophysics, and Geochemistry Science Center.
Science and Products
Salmon River Mountains Legacy Mining Studies
The objective of this study is to characterize the regional impact of legacy mining in the context of framework geology for the Salmon Mountains in central Idaho. This objective is addressed through three interrelated tasks: 1) framework geology, 2) watershed biogeochemical processes, and 3) characterization of trace metals in colloids (fine particles suspended in water).
Northern Rocky Mountains Transect
The goal of the Northern Rocky Mountains Transect (NRMT) project is to produce updated geologic maps of an important and understudied region of Idaho and western Montana that covers a wide array of distinct geologic terrains.
Petrogenesis and REE Metallogenesis of 1.4 Ga Magmatism in the Conterminous U.S.
This project evaluated the petrology and metallogeny of rare earth element-mineralized 1.4 Ga intrusive systems at Mountain Pass and in the St. Francois Mountains relative to those of other, apparently, unmineralized 1.4 Ga intrusive systems in the conterminous U.S.
Basement Tectonic Framework of the U.S.: Role of Cratonization of Juvenile Crust and Structural Modification in Forming Metallogenic Provinces
Project objectives were to publish a map of the nation's geologic basement. The map portrayed these pieces (domains) from the most ancient to recent, by the events that influenced their composition, starting with their origin.
Headwaters Province - Idaho and Montana: Earth Science Studies in Support of Public Policy Development and Land Stewardship
The Headwaters Province project provided geoscience data and interpretations to the Federal Land Management Agencies (FLMA) that were basic to sound policy and land-stewardship practices.
Historic Bayhorse Mining District, ID
Historic Bayhorse mining district millsite in foreground to thick dolostone cliffs of disputed age--either Lower Ordovician or Neoproterozoic, a difference in interpretations of about 100 million years ago. The Bayhorse Mining district was one of the longest-running silver and lead producers in Idaho.
The Ancestors Passing, Old Nez Perce Trail
Pre-historic Nez Perce trail from the Wallowa Mountains of Oregon to the Great Plains to hunt bison. Ponderosa pine shows scars from the harvesting of cambium as a food source on those trips.
Pre-historic Nez Perce trail from the Wallowa Mountains of Oregon to the Great Plains to hunt bison. Ponderosa pine shows scars from the harvesting of cambium as a food source on those trips.
Normal Fault Exposure in Outcrop
Exposure of breccia marking trace of normal fault. Clasts of country rock include Eocene granite dike materials and thus provide an age for the fault as Eocene or younger.
Exposure of breccia marking trace of normal fault. Clasts of country rock include Eocene granite dike materials and thus provide an age for the fault as Eocene or younger.
Science and Products
Salmon River Mountains Legacy Mining Studies
The objective of this study is to characterize the regional impact of legacy mining in the context of framework geology for the Salmon Mountains in central Idaho. This objective is addressed through three interrelated tasks: 1) framework geology, 2) watershed biogeochemical processes, and 3) characterization of trace metals in colloids (fine particles suspended in water).
Northern Rocky Mountains Transect
The goal of the Northern Rocky Mountains Transect (NRMT) project is to produce updated geologic maps of an important and understudied region of Idaho and western Montana that covers a wide array of distinct geologic terrains.
Petrogenesis and REE Metallogenesis of 1.4 Ga Magmatism in the Conterminous U.S.
This project evaluated the petrology and metallogeny of rare earth element-mineralized 1.4 Ga intrusive systems at Mountain Pass and in the St. Francois Mountains relative to those of other, apparently, unmineralized 1.4 Ga intrusive systems in the conterminous U.S.
Basement Tectonic Framework of the U.S.: Role of Cratonization of Juvenile Crust and Structural Modification in Forming Metallogenic Provinces
Project objectives were to publish a map of the nation's geologic basement. The map portrayed these pieces (domains) from the most ancient to recent, by the events that influenced their composition, starting with their origin.
Headwaters Province - Idaho and Montana: Earth Science Studies in Support of Public Policy Development and Land Stewardship
The Headwaters Province project provided geoscience data and interpretations to the Federal Land Management Agencies (FLMA) that were basic to sound policy and land-stewardship practices.
Historic Bayhorse Mining District, ID
Historic Bayhorse mining district millsite in foreground to thick dolostone cliffs of disputed age--either Lower Ordovician or Neoproterozoic, a difference in interpretations of about 100 million years ago. The Bayhorse Mining district was one of the longest-running silver and lead producers in Idaho.
Historic Bayhorse mining district millsite in foreground to thick dolostone cliffs of disputed age--either Lower Ordovician or Neoproterozoic, a difference in interpretations of about 100 million years ago. The Bayhorse Mining district was one of the longest-running silver and lead producers in Idaho.
The Ancestors Passing, Old Nez Perce Trail
Pre-historic Nez Perce trail from the Wallowa Mountains of Oregon to the Great Plains to hunt bison. Ponderosa pine shows scars from the harvesting of cambium as a food source on those trips.
Pre-historic Nez Perce trail from the Wallowa Mountains of Oregon to the Great Plains to hunt bison. Ponderosa pine shows scars from the harvesting of cambium as a food source on those trips.
Normal Fault Exposure in Outcrop
Exposure of breccia marking trace of normal fault. Clasts of country rock include Eocene granite dike materials and thus provide an age for the fault as Eocene or younger.
Exposure of breccia marking trace of normal fault. Clasts of country rock include Eocene granite dike materials and thus provide an age for the fault as Eocene or younger.