Klaus J. Schulz (Former Employee)
Science and Products
Filter Total Items: 49
Magmatic sulfide-rich nickel-copper deposits related to picrite and (or) tholeiitic basalt dike-sill complexes: A preliminary deposit model Magmatic sulfide-rich nickel-copper deposits related to picrite and (or) tholeiitic basalt dike-sill complexes: A preliminary deposit model
Magmatic sulfide deposits containing nickel (Ni) and copper (Cu), with or without (±) platinum-group elements (PGEs), account for approximately 60 percent of the world’s Ni production and are active exploration targets in the United States and elsewhere. On the basis of their principal metal production, magmatic sulfide deposits in mafic rocks can be divided into two major types: those...
Authors
Klaus J. Schulz, Val W. Chandler, Suzanne W. Nicholson, Nadine M. Piatak, Robert R. Seal, Laurel G. Woodruff, Michael L. Zientek
Book review: Hollowed ground—Copper mining and community building on Lake Superior, 1840s–1990s Book review: Hollowed ground—Copper mining and community building on Lake Superior, 1840s–1990s
In 1843, six years before the Forty-niners headed west for the goldfields of California, the United States’ first great mineral rush began to a land that was, as Patrick Henry told Congress, “beyond the most distant wilderness and remote as the moon.” He was referring to the Keweenaw Peninsula of northern Michigan. This rush was not for gold or silver, but for copper. And not just any...
Authors
Klaus J. Schulz
A New Occurrence Model for National Assessment of Undiscovered Volcanogenic Massive Sulfide Deposits A New Occurrence Model for National Assessment of Undiscovered Volcanogenic Massive Sulfide Deposits
Volcanogenic massive sulfide (VMS) deposits are very significant current and historical resources of Cu-Pb-Zn-Au-Ag, are active exploration targets in several areas of the United States and potentially have significant environmental effects. This new USGS VMS deposit model provides a comprehensive review of deposit occurrence and ore genesis, and fully integrates recent advances in the
Authors
W.C. Pat Shanks, Cynthia Dusel-Bacon, Randolph Koski, Lisa A. Morgan, Dan Mosier, Nadine M. Piatak, Ian Ridley, Robert R. Seal, Klaus J. Schulz, John F. Slack, Roland Thurston
Geology and Nonfuel Mineral Deposits of Africa and the Middle East Geology and Nonfuel Mineral Deposits of Africa and the Middle East
A nation's endowment of nonfuel mineral resources, relative to the world's endowment, is a fundamental consideration in decisions related to a nation's economic and environmental well being and security. Knowledge of the worldwide abundance, distribution, and general geologic setting of mineral commodities provides a framework within which a nation can make decisions about economic...
Authors
Cliff D. Taylor, Klaus J. Schulz, Jeff L. Doebrich, Greta Orris, Paul Denning, Michael J. Kirschbaum
Quantitative Mineral Resource Assessment of Copper, Molybdenum, Gold, and Silver in Undiscovered Porphyry Copper Deposits in the Andes Mountains of South America Quantitative Mineral Resource Assessment of Copper, Molybdenum, Gold, and Silver in Undiscovered Porphyry Copper Deposits in the Andes Mountains of South America
Quantitative information on the general locations and amounts of undiscovered porphyry copper resources of the world is important to exploration managers, land-use and environmental planners, economists, and policy makers. This publication contains the results of probabilistic estimates of the amounts of copper (Cu), molybdenum (Mo), gold (Au), and silver (Ag) in undiscovered porphyry...
Authors
Charles G. Cunningham, Eduardo O. Zappettini, Waldo Vivallo S., Carlos Mario Celada, Jorge Quispe, Donald A. Singer, Joseph A. Briskey, David M. Sutphin, Mariano Gajardo M., Alejandro Diaz, Carlos Portigliati, Vladimir I. Berger, Rodrigo Carrasco, Klaus J. Schulz
The Gogebic Iron Range — A sample of the northern margin of the Penokean fold and thrust belt The Gogebic Iron Range — A sample of the northern margin of the Penokean fold and thrust belt
The Gogebic iron range is an elongate belt of Paleoproterozoic strata extending from the west shore of Lake Gogebic in the upper peninsula of Michigan for about 125 km westward into northern Wisconsin. It is one of six major informally named iron ranges in the Lake Superior region and produced about 325 million tons of direct-shipping ore between 1887 and 1967. A significant resource of
Authors
William F. Cannon, Gene L. LaBerge, John S. Klasner, Klaus J. Schulz
Science and Products
Filter Total Items: 49
Magmatic sulfide-rich nickel-copper deposits related to picrite and (or) tholeiitic basalt dike-sill complexes: A preliminary deposit model Magmatic sulfide-rich nickel-copper deposits related to picrite and (or) tholeiitic basalt dike-sill complexes: A preliminary deposit model
Magmatic sulfide deposits containing nickel (Ni) and copper (Cu), with or without (±) platinum-group elements (PGEs), account for approximately 60 percent of the world’s Ni production and are active exploration targets in the United States and elsewhere. On the basis of their principal metal production, magmatic sulfide deposits in mafic rocks can be divided into two major types: those...
Authors
Klaus J. Schulz, Val W. Chandler, Suzanne W. Nicholson, Nadine M. Piatak, Robert R. Seal, Laurel G. Woodruff, Michael L. Zientek
Book review: Hollowed ground—Copper mining and community building on Lake Superior, 1840s–1990s Book review: Hollowed ground—Copper mining and community building on Lake Superior, 1840s–1990s
In 1843, six years before the Forty-niners headed west for the goldfields of California, the United States’ first great mineral rush began to a land that was, as Patrick Henry told Congress, “beyond the most distant wilderness and remote as the moon.” He was referring to the Keweenaw Peninsula of northern Michigan. This rush was not for gold or silver, but for copper. And not just any...
Authors
Klaus J. Schulz
A New Occurrence Model for National Assessment of Undiscovered Volcanogenic Massive Sulfide Deposits A New Occurrence Model for National Assessment of Undiscovered Volcanogenic Massive Sulfide Deposits
Volcanogenic massive sulfide (VMS) deposits are very significant current and historical resources of Cu-Pb-Zn-Au-Ag, are active exploration targets in several areas of the United States and potentially have significant environmental effects. This new USGS VMS deposit model provides a comprehensive review of deposit occurrence and ore genesis, and fully integrates recent advances in the
Authors
W.C. Pat Shanks, Cynthia Dusel-Bacon, Randolph Koski, Lisa A. Morgan, Dan Mosier, Nadine M. Piatak, Ian Ridley, Robert R. Seal, Klaus J. Schulz, John F. Slack, Roland Thurston
Geology and Nonfuel Mineral Deposits of Africa and the Middle East Geology and Nonfuel Mineral Deposits of Africa and the Middle East
A nation's endowment of nonfuel mineral resources, relative to the world's endowment, is a fundamental consideration in decisions related to a nation's economic and environmental well being and security. Knowledge of the worldwide abundance, distribution, and general geologic setting of mineral commodities provides a framework within which a nation can make decisions about economic...
Authors
Cliff D. Taylor, Klaus J. Schulz, Jeff L. Doebrich, Greta Orris, Paul Denning, Michael J. Kirschbaum
Quantitative Mineral Resource Assessment of Copper, Molybdenum, Gold, and Silver in Undiscovered Porphyry Copper Deposits in the Andes Mountains of South America Quantitative Mineral Resource Assessment of Copper, Molybdenum, Gold, and Silver in Undiscovered Porphyry Copper Deposits in the Andes Mountains of South America
Quantitative information on the general locations and amounts of undiscovered porphyry copper resources of the world is important to exploration managers, land-use and environmental planners, economists, and policy makers. This publication contains the results of probabilistic estimates of the amounts of copper (Cu), molybdenum (Mo), gold (Au), and silver (Ag) in undiscovered porphyry...
Authors
Charles G. Cunningham, Eduardo O. Zappettini, Waldo Vivallo S., Carlos Mario Celada, Jorge Quispe, Donald A. Singer, Joseph A. Briskey, David M. Sutphin, Mariano Gajardo M., Alejandro Diaz, Carlos Portigliati, Vladimir I. Berger, Rodrigo Carrasco, Klaus J. Schulz
The Gogebic Iron Range — A sample of the northern margin of the Penokean fold and thrust belt The Gogebic Iron Range — A sample of the northern margin of the Penokean fold and thrust belt
The Gogebic iron range is an elongate belt of Paleoproterozoic strata extending from the west shore of Lake Gogebic in the upper peninsula of Michigan for about 125 km westward into northern Wisconsin. It is one of six major informally named iron ranges in the Lake Superior region and produced about 325 million tons of direct-shipping ore between 1887 and 1967. A significant resource of
Authors
William F. Cannon, Gene L. LaBerge, John S. Klasner, Klaus J. Schulz