William H. Orem, Ph.D. (Former Employee)
Science and Products
Filter Total Items: 130
DBP formation of aquatic humic substances DBP formation of aquatic humic substances
Terrestrial vegetation commonly shed into reservoirs contains chemical precursors of DBPs. Aquatic humic substances (AHSs) in water generate potentially harmful disinfection by‐products (DBPs) such as haloacetic acids (HAAs) and trihalomethanes (THMs) during chlorination. AHSs from two Arkansas reservoirs were characterized to define source, identify meta‐dihydroxybenzene (m‐DHB)...
Authors
M.L. Pomes, W. Green, E.M. Thurman, W. H. Orem, H.E. Lerch
Lanthanide, yttrium, and zirconium anomalies in the Fire Clay coal bed, Eastern Kentucky Lanthanide, yttrium, and zirconium anomalies in the Fire Clay coal bed, Eastern Kentucky
The Fire Clay coal bed in the Central Appalachian basin region contains a laterally-persistent tonstein that is found in the coal throughout most of its areal extent. The tonstein contains an array of minerals, including sanidine, ??-quartz, anatase and euhedral zircon, thhat constitutes strong evidence for a volcanic origin of the parting. For this study, five samples of the tonstein...
Authors
J.C. Hower, L.F. Ruppert, C.F. Eble
A digital resource model of the Upper Pennsylvanian Pittsburgh coal bed, Monongahela Group, northern Appalachian basin coal region, USA A digital resource model of the Upper Pennsylvanian Pittsburgh coal bed, Monongahela Group, northern Appalachian basin coal region, USA
The U.S. Geological Survey is currently conducting a coal resource assessment of the coal beds and zones that are expected to provide the bulk of the Nation's coal resources for the next few decades. The Pittsburgh coal bed is the first bed in the northern and central Appalachian basin coal region to undergo a fully-digital assessment. The bed-specific assessment is being carried out in
Authors
L.F. Ruppert, S.J. Tewalt, L. Bragg, R.N. Wallack
The etiology of Balkan endemic nephropathy: Still more questions than answers The etiology of Balkan endemic nephropathy: Still more questions than answers
Balkan endemic nephropathy (BEN) has attracted increasing attention as a possible environmental disease, and a significant amount of research from complementary scientific fields has been dedicated to its etiology. There are two actual competing theories attempting to explain the cause of this kidney disease: 1) the mycotoxin hypothesis, which considers that BEN is produced by ochratoxin...
Authors
C. A. Tatu, W. H. Orem, R. Finkelman, G. Feder
Preliminary results of the first scientific Drilling on Lake Baikal, Buguldeika site, southeastern Siberia Preliminary results of the first scientific Drilling on Lake Baikal, Buguldeika site, southeastern Siberia
The Baikal Drilling Project (BDP) is a multinational effort to investigate the paleoclimatic history and tectonic evolution of the Baikal sedimentary basin during the Late Neogene. In March 1993 the Baikal drilling system was successfuly deployed from a barge frozen into position over a topographic high, termed the Buguldeika saddle, in the southern basin of Lake Baikal. The BDP-93...
Authors
Douglas Williams, S. Colman, M. Grachev, P. Hearn, Shoji Horie, T. Kawai, Mikhail Kuzmin, N. Logachov, V. Antipin, A. Bardardinov, A. Bucharov, V. Fialkov, A. Gorigljad, B. Tomilov, B.N. Khakhaev, S. Kochikov, N. Logachev, L.A. Pevzner, E.B. Karabanov, V. Mats, E. Baranova, O. Khlystov, E. Khrachenko, M. Shimaraeva, E. Stolbova, S. Efremova, A. Gvozdkov, A. Kravchinski, J. Peck, T. Fileva, S. Kashik, T. Khramtsova, I. Kalashnikova, T. Rasskazova, V. Tatarnikova, Richard Yuretich, V. Mazilov, K. Takemura, V. Bobrov, T. Gunicheva, H. Haraguchi, S. Ito, T. Kocho, M. Markova, V. Pampura, O. Proidakova, R. Ishiwatari, H. Sawatari, A. Takeuchi, K. Toyoda, S. Vorobieva, A. Ikeda, A. Marui, T. Nakamura, K. Ogura, Takeshi Ohta, J. King, H. Sakai, T. Yokoyama, A. Hayashida, E. Bezrukova, S. Fowell, N. Fujii, P. Letunova, V. Misharina, N. Miyoshi, G. Chernyaeva, I. Ignatova, E. Likhoshvai, L. Granina, O. Levina, P. Dolgikh, F. Lazo, N. Lutskaia, W. Orem, E. Wada, K. Yamada, S. Yamada, E. Callander, L. Golobokoval, W. Shanks, R. Dorofeeva, A. Duchkov
Lignin phenols in sediments of Lake Baikal, Siberia: Application to paleoenvironmental studies Lignin phenols in sediments of Lake Baikal, Siberia: Application to paleoenvironmental studies
Sediments from three cores obtained from distinct depositional environments in Lake Baikal, Siberia were analyzed for organic carbon, total nitrogen and lignin phenol concentration and composition. Results were used to examine changes in paleoenvironmental conditions during climatic cycles of the late Quaternary ( 125 ka). Average organic carbon, and total nitrogen concentrations, atomic...
Authors
W. H. Orem, Steven Colman, H.E. Lerch
Map showing generalized thickness contours of the Pittsburgh coal bed in Pennsylvania, Ohio, West Virginia, and Maryland Map showing generalized thickness contours of the Pittsburgh coal bed in Pennsylvania, Ohio, West Virginia, and Maryland
No abstract available.
Authors
S. J. Tewalt, L.F. Ruppert, L. Bragg, Richard Carlton, David Brezinski, R.N. Wallack
Source characterization of disinfection byproduct precursors in two Arkansas water-supply reservoirs Source characterization of disinfection byproduct precursors in two Arkansas water-supply reservoirs
No abstract available.
Authors
Michael Pomes, W. Green, E.M. Thurman, W. H. Orem, H.T. Lerch
Arsenic and lead concentrations in the Pond Creek and Fire Clay coal beds, eastern Kentucky coal field Arsenic and lead concentrations in the Pond Creek and Fire Clay coal beds, eastern Kentucky coal field
The Middle Pennsylvanian Breathitt Formation (Westphalian B) Pond Creek and Fire Clay coal beds are the 2 largest producing coal beds in eastern Kentucky. Single channel samples from 22 localities in the Pond Creek coal bed were obtained from active coal mines in Pike and Martin Countries, Kentucky, and a total of 18 Fire Clay coal bed channel samples were collected from localities in...
Authors
J.C. Hower, J.D. Robertson, A.S. Wong, C.F. Eble, L.F. Ruppert
South Florida wetlands ecosystem; biogeochemical processes in peat South Florida wetlands ecosystem; biogeochemical processes in peat
The South Florida wetlands ecosystem is an environment of great size and ecological diversity (figs. 1 and 2). The landscape diversity and subtropical setting of this ecosystem provide a habitat for an abundance of plants and wildlife, some of which are unique to South Florida. South Florida wetlands are currently in crisis, however, due to the combined effects of agriculture...
Authors
William Orem
AMS radiocarbon analyses from Lake Baikal, Siberia: Challenges of dating sediments from a large, oligotrophic lake AMS radiocarbon analyses from Lake Baikal, Siberia: Challenges of dating sediments from a large, oligotrophic lake
A suite of 146 new accelerator-mass spectrometer (AMS) radiocarbon ages provides the first reliable chronology for late Quaternary sediments in Lake Baikal. In this large, highly oligotrophic lake, biogenic and authigenic carbonate are absent, and plant macrofossils are extremely rare. Total organic carbon is therefore the primary material available for dating. Several problems are...
Authors
Steven Colman, Glenn Jones, M. Rubin, J.W. King, J.A. Peck, W. H. Orem
Assessing the coal resources of the United States Assessing the coal resources of the United States
In 1994, coal production in the United States reached the highest level in history (slightly more than 909 million metric tons or one billion short tons), continuing the upward trend of coal production and utilization that began 34 years ago. Previous assessments of the coal resources of the United States, which were completed as early as 1909, clearly indicated that the total coal...
Authors
Harold Gluskoter, R. Flores, J. Hatch, M.A. Kirschbaum, L.F. Ruppert, Peter Warwick
Science and Products
Filter Total Items: 130
DBP formation of aquatic humic substances DBP formation of aquatic humic substances
Terrestrial vegetation commonly shed into reservoirs contains chemical precursors of DBPs. Aquatic humic substances (AHSs) in water generate potentially harmful disinfection by‐products (DBPs) such as haloacetic acids (HAAs) and trihalomethanes (THMs) during chlorination. AHSs from two Arkansas reservoirs were characterized to define source, identify meta‐dihydroxybenzene (m‐DHB)...
Authors
M.L. Pomes, W. Green, E.M. Thurman, W. H. Orem, H.E. Lerch
Lanthanide, yttrium, and zirconium anomalies in the Fire Clay coal bed, Eastern Kentucky Lanthanide, yttrium, and zirconium anomalies in the Fire Clay coal bed, Eastern Kentucky
The Fire Clay coal bed in the Central Appalachian basin region contains a laterally-persistent tonstein that is found in the coal throughout most of its areal extent. The tonstein contains an array of minerals, including sanidine, ??-quartz, anatase and euhedral zircon, thhat constitutes strong evidence for a volcanic origin of the parting. For this study, five samples of the tonstein...
Authors
J.C. Hower, L.F. Ruppert, C.F. Eble
A digital resource model of the Upper Pennsylvanian Pittsburgh coal bed, Monongahela Group, northern Appalachian basin coal region, USA A digital resource model of the Upper Pennsylvanian Pittsburgh coal bed, Monongahela Group, northern Appalachian basin coal region, USA
The U.S. Geological Survey is currently conducting a coal resource assessment of the coal beds and zones that are expected to provide the bulk of the Nation's coal resources for the next few decades. The Pittsburgh coal bed is the first bed in the northern and central Appalachian basin coal region to undergo a fully-digital assessment. The bed-specific assessment is being carried out in
Authors
L.F. Ruppert, S.J. Tewalt, L. Bragg, R.N. Wallack
The etiology of Balkan endemic nephropathy: Still more questions than answers The etiology of Balkan endemic nephropathy: Still more questions than answers
Balkan endemic nephropathy (BEN) has attracted increasing attention as a possible environmental disease, and a significant amount of research from complementary scientific fields has been dedicated to its etiology. There are two actual competing theories attempting to explain the cause of this kidney disease: 1) the mycotoxin hypothesis, which considers that BEN is produced by ochratoxin...
Authors
C. A. Tatu, W. H. Orem, R. Finkelman, G. Feder
Preliminary results of the first scientific Drilling on Lake Baikal, Buguldeika site, southeastern Siberia Preliminary results of the first scientific Drilling on Lake Baikal, Buguldeika site, southeastern Siberia
The Baikal Drilling Project (BDP) is a multinational effort to investigate the paleoclimatic history and tectonic evolution of the Baikal sedimentary basin during the Late Neogene. In March 1993 the Baikal drilling system was successfuly deployed from a barge frozen into position over a topographic high, termed the Buguldeika saddle, in the southern basin of Lake Baikal. The BDP-93...
Authors
Douglas Williams, S. Colman, M. Grachev, P. Hearn, Shoji Horie, T. Kawai, Mikhail Kuzmin, N. Logachov, V. Antipin, A. Bardardinov, A. Bucharov, V. Fialkov, A. Gorigljad, B. Tomilov, B.N. Khakhaev, S. Kochikov, N. Logachev, L.A. Pevzner, E.B. Karabanov, V. Mats, E. Baranova, O. Khlystov, E. Khrachenko, M. Shimaraeva, E. Stolbova, S. Efremova, A. Gvozdkov, A. Kravchinski, J. Peck, T. Fileva, S. Kashik, T. Khramtsova, I. Kalashnikova, T. Rasskazova, V. Tatarnikova, Richard Yuretich, V. Mazilov, K. Takemura, V. Bobrov, T. Gunicheva, H. Haraguchi, S. Ito, T. Kocho, M. Markova, V. Pampura, O. Proidakova, R. Ishiwatari, H. Sawatari, A. Takeuchi, K. Toyoda, S. Vorobieva, A. Ikeda, A. Marui, T. Nakamura, K. Ogura, Takeshi Ohta, J. King, H. Sakai, T. Yokoyama, A. Hayashida, E. Bezrukova, S. Fowell, N. Fujii, P. Letunova, V. Misharina, N. Miyoshi, G. Chernyaeva, I. Ignatova, E. Likhoshvai, L. Granina, O. Levina, P. Dolgikh, F. Lazo, N. Lutskaia, W. Orem, E. Wada, K. Yamada, S. Yamada, E. Callander, L. Golobokoval, W. Shanks, R. Dorofeeva, A. Duchkov
Lignin phenols in sediments of Lake Baikal, Siberia: Application to paleoenvironmental studies Lignin phenols in sediments of Lake Baikal, Siberia: Application to paleoenvironmental studies
Sediments from three cores obtained from distinct depositional environments in Lake Baikal, Siberia were analyzed for organic carbon, total nitrogen and lignin phenol concentration and composition. Results were used to examine changes in paleoenvironmental conditions during climatic cycles of the late Quaternary ( 125 ka). Average organic carbon, and total nitrogen concentrations, atomic...
Authors
W. H. Orem, Steven Colman, H.E. Lerch
Map showing generalized thickness contours of the Pittsburgh coal bed in Pennsylvania, Ohio, West Virginia, and Maryland Map showing generalized thickness contours of the Pittsburgh coal bed in Pennsylvania, Ohio, West Virginia, and Maryland
No abstract available.
Authors
S. J. Tewalt, L.F. Ruppert, L. Bragg, Richard Carlton, David Brezinski, R.N. Wallack
Source characterization of disinfection byproduct precursors in two Arkansas water-supply reservoirs Source characterization of disinfection byproduct precursors in two Arkansas water-supply reservoirs
No abstract available.
Authors
Michael Pomes, W. Green, E.M. Thurman, W. H. Orem, H.T. Lerch
Arsenic and lead concentrations in the Pond Creek and Fire Clay coal beds, eastern Kentucky coal field Arsenic and lead concentrations in the Pond Creek and Fire Clay coal beds, eastern Kentucky coal field
The Middle Pennsylvanian Breathitt Formation (Westphalian B) Pond Creek and Fire Clay coal beds are the 2 largest producing coal beds in eastern Kentucky. Single channel samples from 22 localities in the Pond Creek coal bed were obtained from active coal mines in Pike and Martin Countries, Kentucky, and a total of 18 Fire Clay coal bed channel samples were collected from localities in...
Authors
J.C. Hower, J.D. Robertson, A.S. Wong, C.F. Eble, L.F. Ruppert
South Florida wetlands ecosystem; biogeochemical processes in peat South Florida wetlands ecosystem; biogeochemical processes in peat
The South Florida wetlands ecosystem is an environment of great size and ecological diversity (figs. 1 and 2). The landscape diversity and subtropical setting of this ecosystem provide a habitat for an abundance of plants and wildlife, some of which are unique to South Florida. South Florida wetlands are currently in crisis, however, due to the combined effects of agriculture...
Authors
William Orem
AMS radiocarbon analyses from Lake Baikal, Siberia: Challenges of dating sediments from a large, oligotrophic lake AMS radiocarbon analyses from Lake Baikal, Siberia: Challenges of dating sediments from a large, oligotrophic lake
A suite of 146 new accelerator-mass spectrometer (AMS) radiocarbon ages provides the first reliable chronology for late Quaternary sediments in Lake Baikal. In this large, highly oligotrophic lake, biogenic and authigenic carbonate are absent, and plant macrofossils are extremely rare. Total organic carbon is therefore the primary material available for dating. Several problems are...
Authors
Steven Colman, Glenn Jones, M. Rubin, J.W. King, J.A. Peck, W. H. Orem
Assessing the coal resources of the United States Assessing the coal resources of the United States
In 1994, coal production in the United States reached the highest level in history (slightly more than 909 million metric tons or one billion short tons), continuing the upward trend of coal production and utilization that began 34 years ago. Previous assessments of the coal resources of the United States, which were completed as early as 1909, clearly indicated that the total coal...
Authors
Harold Gluskoter, R. Flores, J. Hatch, M.A. Kirschbaum, L.F. Ruppert, Peter Warwick