Chuck Blome
Chuck Blome is a Scientist Emeritus with the Geosciences and Environmental Change Science Center
Science and Products
Filter Total Items: 27
Map Showing Geology and Hydrostratigraphy of the Edwards Aquifer Catchment Area, Northern Bexar County, South-Central Texas
Rock units forming the Edwards and Trinity aquifers in northern Bexar County, Texas, are exposed within all or parts of seven 7.5-minute quadrangles: Bulverde, Camp Bullis, Castle Hills, Helotes, Jack Mountain, San Geronimo, and Van Raub. The Edwards aquifer is the most prolific ground-water source in Bexar County, whereas the Trinity aquifer supplies water for residential, commercial, and industr
Authors
Amy R. Clark, Charles D. Blome, Jason R. Faith
Three-Dimensional Geologic Model of Complex Fault Structures in the Upper Seco Creek Area, Medina and Uvalde Counties, South-Central Texas
This multimedia report shows and describes digital three-dimensional faulted geologic surfaces and volumes of the lithologic units of the Edwards aquifer in the upper Seco Creek area of Medina and Uvalde Counties in south-central Texas. This geologic framework model was produced using (1) geologic maps and interpretations of depositional environments and paleogeography; (2) lithologic descriptions
Authors
Michael P. Pantea, J. C. Cole, Bruce D. Smith, Jason R. Faith, Charles D. Blome, David V. Smith
Distribution of Igneous Rocks in Medina and Uvalde Counties, Texas, as Inferred from Aeromagnetic Data
A high-resolution aeromagnetic survey was flown in 2001 over Medina and Uvalde Counties, Texas, as part of a multi-disciplinary investigation of the geohydrologic framework of the Edwards aquifer in south-central Texas. The objective of the survey was to assist in mapping structural features that influence aquifer recharge and ground-water flow. The survey revealed hundreds of magnetic anomalies a
Authors
David V. Smith, Robert R. McDougal, Bruce D. Smith, Charles D. Blome
Geohydrologic Framework of the Edwards and Trinity Aquifers, South-Central Texas
This five-year USGS project, funded by the National Cooperative Geologic Mapping Program, is using multidisciplinary approaches to reveal the surface and subsurface geologic architecture of two important Texas aquifers: (1) the Edwards aquifer that extends from south of Austin to west of San Antonio and (2) the southern part of the Trinity aquifer in the Texas Hill Country west and south of Austin
Authors
Charles D. Blome, Jason R. Faith, George B. Ozuna
Conodont and Radiolarian Data from the De Long Mountains Quadrangle and Adjacent Areas, Northern Alaska
INTRODUCTION This report presents biostratigraphic data from 289 collections at 189 localities in the De Long Mountains, Misheguk Mountain, and Noatak quadrangles (fig. 1); most of these data have never been previously published. The collections were made during studies of the Red Dog massive sulfide deposit in 1998?2004 and in support of regional mapping projects in 1979, 1981, 1983, and 1997?98.
Authors
Julie A. Dumoulin, Anita G. Harris, Charles D. Blome, Lorne E. Young
Geologic Map of the Edwards Aquifer In Northern Medina and Northeastern Uvalde Counties, South-central Texas
The southern segment of the Edwards aquifer in south-central Texas is one of the most productive subsurface reservoirs of potable water in the world, providing water of excellent quality to more than a million people in the San Antonio region, where the Environmental Protection Agency (EPA) has declared it to be a sole-source aquifer (van der Leeden and others, 1990). Depending on the depositional
Authors
Allan K. Clark, Jason R. Faith, Charles D. Blome, Diana E. Pedraza
Geologic map compilation of the Upper Seco Creek Area, Medina and Uvalde Counties, south-central Texas
No abstract available.
Authors
Charles D. Blome, Jason R. Faith, Edward W. Collins, Diana E. Pedraza, Kyle E. Murray
Preliminary 40Ar/39Ar geochronology of igneous intrusions from Uvalde County, Texas: Defining a more precise eruption history for the southern Balcones Volcanic Province
No abstract available.
Authors
Daniel P. Miggins, Charles D. Blome, David V. Smith
Map showing fossil localities of the Rattlesnake Creek, western and eastern Hayfork, and North Fork Terranes of the Klamath Mountains
No abstract available.
Authors
William P. Irwin, Charles D. Blome
Depositional settings, correlation, and age carboniferous rocks in the western Brooks Range, Alaska
The Kuna Formation (Lisburne Group) in northwest Alaska hosts the Red Dog and other Zn-Pb-Ag massive sulfide deposits in the Red Dog district. New studies of the sedimentology and paleontology of the Lisburne Group constrain the setting, age, and thermal history of these deposits. In the western and west-central Brooks Range, the Lisburne Group includes both deep- and shallow-water sedimentary fac
Authors
Julie A. Dumoulin, Anita G. Harris, Charles D. Blome, Lorne E. Young
The Blake Nose Cretaceous-Paleogene (Florida Atlantic margin, ODP Leg 171 B): An exemplar record of the Maastrichtian-Danian transition
During ODP Leg 171B, devoted to the analysis of the Blake Plateau margin in front of Florida, 16 holes have been drilled in 5 distinct sites. The sites have documented a sedimentary succession ranging in age from Aptian to Eocene. Emphasis has been put on critical periods, comprising the Paleocene-Eocene transition, the Cretaceous-Tertiary boundary which has been cored in excellent conditions, the
Authors
J. -P. Bellier, S. Marca, Richard D. Norris, D. Kroon, A. Klaus, I. T. Alexander, L. P. Bardot, Charles E. Barker, Charles D. Blome, L. J. Clarke, J. Erbacher, K. L. Faul, M. A. Holmes, Brian T. Huber, Miriam E. Katz, Kenneth G. MacLeod, F. C. Martinez-Ruiz, I. Mita, M. Nakai, James G. Ogg, Dorothy K. Pak, T. K. Pletsch, Jean Self-Trail, N. J. Shackleton, J. Smit, William Ussler, David K. Watkins, J. Widmark, Paul A. Wilson
Late cretaceous pelagic sediments, volcanic ASH and biotas from near the Louisville hotspot, Pacific Plate, paleolatitude ∼42°S
Dredging on the deep inner slope of the Tonga Trench, immediately north of the intersection between the Louisville Ridge hotspot chain and the trench, recovered some Late Cretaceous (Maestrichtian) slightly tuffaceous pelagic sediments. They are inferred to have been scraped off a recently subducted Late Cretaceous guyot of the Louisville chain. In the vicinity of the Louisville hotspot (present l
Authors
Peter F. Ballance, John A. Barron, Charles D. Blome, David Bukry, Peter A. Cawood, George C.H. Chaproniere, Robyn Frisch, Richard H. Herzer, Campbell S. Nelson, Paula Quinterno, Holly F. Ryan, David W. Scholl, Andrew J. Stevenson, David G. Tappin, Tracy L. Vallier
Science and Products
Filter Total Items: 27
Map Showing Geology and Hydrostratigraphy of the Edwards Aquifer Catchment Area, Northern Bexar County, South-Central Texas
Rock units forming the Edwards and Trinity aquifers in northern Bexar County, Texas, are exposed within all or parts of seven 7.5-minute quadrangles: Bulverde, Camp Bullis, Castle Hills, Helotes, Jack Mountain, San Geronimo, and Van Raub. The Edwards aquifer is the most prolific ground-water source in Bexar County, whereas the Trinity aquifer supplies water for residential, commercial, and industr
Authors
Amy R. Clark, Charles D. Blome, Jason R. Faith
Three-Dimensional Geologic Model of Complex Fault Structures in the Upper Seco Creek Area, Medina and Uvalde Counties, South-Central Texas
This multimedia report shows and describes digital three-dimensional faulted geologic surfaces and volumes of the lithologic units of the Edwards aquifer in the upper Seco Creek area of Medina and Uvalde Counties in south-central Texas. This geologic framework model was produced using (1) geologic maps and interpretations of depositional environments and paleogeography; (2) lithologic descriptions
Authors
Michael P. Pantea, J. C. Cole, Bruce D. Smith, Jason R. Faith, Charles D. Blome, David V. Smith
Distribution of Igneous Rocks in Medina and Uvalde Counties, Texas, as Inferred from Aeromagnetic Data
A high-resolution aeromagnetic survey was flown in 2001 over Medina and Uvalde Counties, Texas, as part of a multi-disciplinary investigation of the geohydrologic framework of the Edwards aquifer in south-central Texas. The objective of the survey was to assist in mapping structural features that influence aquifer recharge and ground-water flow. The survey revealed hundreds of magnetic anomalies a
Authors
David V. Smith, Robert R. McDougal, Bruce D. Smith, Charles D. Blome
Geohydrologic Framework of the Edwards and Trinity Aquifers, South-Central Texas
This five-year USGS project, funded by the National Cooperative Geologic Mapping Program, is using multidisciplinary approaches to reveal the surface and subsurface geologic architecture of two important Texas aquifers: (1) the Edwards aquifer that extends from south of Austin to west of San Antonio and (2) the southern part of the Trinity aquifer in the Texas Hill Country west and south of Austin
Authors
Charles D. Blome, Jason R. Faith, George B. Ozuna
Conodont and Radiolarian Data from the De Long Mountains Quadrangle and Adjacent Areas, Northern Alaska
INTRODUCTION This report presents biostratigraphic data from 289 collections at 189 localities in the De Long Mountains, Misheguk Mountain, and Noatak quadrangles (fig. 1); most of these data have never been previously published. The collections were made during studies of the Red Dog massive sulfide deposit in 1998?2004 and in support of regional mapping projects in 1979, 1981, 1983, and 1997?98.
Authors
Julie A. Dumoulin, Anita G. Harris, Charles D. Blome, Lorne E. Young
Geologic Map of the Edwards Aquifer In Northern Medina and Northeastern Uvalde Counties, South-central Texas
The southern segment of the Edwards aquifer in south-central Texas is one of the most productive subsurface reservoirs of potable water in the world, providing water of excellent quality to more than a million people in the San Antonio region, where the Environmental Protection Agency (EPA) has declared it to be a sole-source aquifer (van der Leeden and others, 1990). Depending on the depositional
Authors
Allan K. Clark, Jason R. Faith, Charles D. Blome, Diana E. Pedraza
Geologic map compilation of the Upper Seco Creek Area, Medina and Uvalde Counties, south-central Texas
No abstract available.
Authors
Charles D. Blome, Jason R. Faith, Edward W. Collins, Diana E. Pedraza, Kyle E. Murray
Preliminary 40Ar/39Ar geochronology of igneous intrusions from Uvalde County, Texas: Defining a more precise eruption history for the southern Balcones Volcanic Province
No abstract available.
Authors
Daniel P. Miggins, Charles D. Blome, David V. Smith
Map showing fossil localities of the Rattlesnake Creek, western and eastern Hayfork, and North Fork Terranes of the Klamath Mountains
No abstract available.
Authors
William P. Irwin, Charles D. Blome
Depositional settings, correlation, and age carboniferous rocks in the western Brooks Range, Alaska
The Kuna Formation (Lisburne Group) in northwest Alaska hosts the Red Dog and other Zn-Pb-Ag massive sulfide deposits in the Red Dog district. New studies of the sedimentology and paleontology of the Lisburne Group constrain the setting, age, and thermal history of these deposits. In the western and west-central Brooks Range, the Lisburne Group includes both deep- and shallow-water sedimentary fac
Authors
Julie A. Dumoulin, Anita G. Harris, Charles D. Blome, Lorne E. Young
The Blake Nose Cretaceous-Paleogene (Florida Atlantic margin, ODP Leg 171 B): An exemplar record of the Maastrichtian-Danian transition
During ODP Leg 171B, devoted to the analysis of the Blake Plateau margin in front of Florida, 16 holes have been drilled in 5 distinct sites. The sites have documented a sedimentary succession ranging in age from Aptian to Eocene. Emphasis has been put on critical periods, comprising the Paleocene-Eocene transition, the Cretaceous-Tertiary boundary which has been cored in excellent conditions, the
Authors
J. -P. Bellier, S. Marca, Richard D. Norris, D. Kroon, A. Klaus, I. T. Alexander, L. P. Bardot, Charles E. Barker, Charles D. Blome, L. J. Clarke, J. Erbacher, K. L. Faul, M. A. Holmes, Brian T. Huber, Miriam E. Katz, Kenneth G. MacLeod, F. C. Martinez-Ruiz, I. Mita, M. Nakai, James G. Ogg, Dorothy K. Pak, T. K. Pletsch, Jean Self-Trail, N. J. Shackleton, J. Smit, William Ussler, David K. Watkins, J. Widmark, Paul A. Wilson
Late cretaceous pelagic sediments, volcanic ASH and biotas from near the Louisville hotspot, Pacific Plate, paleolatitude ∼42°S
Dredging on the deep inner slope of the Tonga Trench, immediately north of the intersection between the Louisville Ridge hotspot chain and the trench, recovered some Late Cretaceous (Maestrichtian) slightly tuffaceous pelagic sediments. They are inferred to have been scraped off a recently subducted Late Cretaceous guyot of the Louisville chain. In the vicinity of the Louisville hotspot (present l
Authors
Peter F. Ballance, John A. Barron, Charles D. Blome, David Bukry, Peter A. Cawood, George C.H. Chaproniere, Robyn Frisch, Richard H. Herzer, Campbell S. Nelson, Paula Quinterno, Holly F. Ryan, David W. Scholl, Andrew J. Stevenson, David G. Tappin, Tracy L. Vallier