Robert Weems (Former Employee)
Science and Products
Filter Total Items: 68
The "terminal Triassic catastrophic extinction event" in perspective: A review of carboniferous through Early Jurassic terrestrial vertebrate extinction patterns The "terminal Triassic catastrophic extinction event" in perspective: A review of carboniferous through Early Jurassic terrestrial vertebrate extinction patterns
A catastrophic terminal Triassic extinction event among terrestrial vertebrates is not supported by available evidence. The current model for such an extinction is based on at least eight weak or untenable assumptions: (1) a terminal Triassic extinction-inducing asteroid impact occurred, (2) a terminal Triassic synchronous mass extinction of terrestrial vertebrates occurred, (3) a...
Authors
R.E. Weems
Earthquake-induced liquefaction features in the coastal setting of South Carolina and in the fluvial setting of the New Madrid seismic zone Earthquake-induced liquefaction features in the coastal setting of South Carolina and in the fluvial setting of the New Madrid seismic zone
Many types of liquefaction-related features (sand blows, fissures, lateral spreads, dikes, and sills) have been induced by earthquakes in coastal South Carolina and in the New Madrid seismic zone in the Central United States. In addition, abundant features of unknown and nonseismic origin are present. Geologic criteria for interpreting an earthquake origin in these areas are illustrated...
Authors
S. F. Obermeier, R. B. Jacobson, J. P. Smoot, R.E. Weems, G. S. Gohn, J.E. Monroe, D.S. Powars
Strong correlation of major earthquakes with solid-earth tides in part of the eastern United States Strong correlation of major earthquakes with solid-earth tides in part of the eastern United States
East of the eastern American continental divide and south of fat 42.5°N, moderate to large historic earthquakes correlate strongly with times of high and low solid-earth tides. This effect is most pronounced when solar declination lies between 17°N and 17°S. Significant correlations also exist between major earthquakes, time of day, lunar declinations, and lunar phase.
Authors
R.E. Weems, W.H. Perry
Geologic map of the Moncks Corner quadrangle, Berkeley County, South Carolina Geologic map of the Moncks Corner quadrangle, Berkeley County, South Carolina
No abstract available.
Authors
R.E. Weems, Earl M. Lemon
Geologic map of the Ladson quadrangle, Berkeley, Charleston, and Dorchester Counties, South Carolina Geologic map of the Ladson quadrangle, Berkeley, Charleston, and Dorchester Counties, South Carolina
No abstract available.
Authors
R.E. Weems, Earl M. Lemon
Earthquake-induced liquefaction features in the coastal South Carolina region Earthquake-induced liquefaction features in the coastal South Carolina region
No abstract available.
Authors
S. F. Obermeier, R.E. Weems, R. B. Jacobson
Science and Products
Filter Total Items: 68
The "terminal Triassic catastrophic extinction event" in perspective: A review of carboniferous through Early Jurassic terrestrial vertebrate extinction patterns The "terminal Triassic catastrophic extinction event" in perspective: A review of carboniferous through Early Jurassic terrestrial vertebrate extinction patterns
A catastrophic terminal Triassic extinction event among terrestrial vertebrates is not supported by available evidence. The current model for such an extinction is based on at least eight weak or untenable assumptions: (1) a terminal Triassic extinction-inducing asteroid impact occurred, (2) a terminal Triassic synchronous mass extinction of terrestrial vertebrates occurred, (3) a...
Authors
R.E. Weems
Earthquake-induced liquefaction features in the coastal setting of South Carolina and in the fluvial setting of the New Madrid seismic zone Earthquake-induced liquefaction features in the coastal setting of South Carolina and in the fluvial setting of the New Madrid seismic zone
Many types of liquefaction-related features (sand blows, fissures, lateral spreads, dikes, and sills) have been induced by earthquakes in coastal South Carolina and in the New Madrid seismic zone in the Central United States. In addition, abundant features of unknown and nonseismic origin are present. Geologic criteria for interpreting an earthquake origin in these areas are illustrated...
Authors
S. F. Obermeier, R. B. Jacobson, J. P. Smoot, R.E. Weems, G. S. Gohn, J.E. Monroe, D.S. Powars
Strong correlation of major earthquakes with solid-earth tides in part of the eastern United States Strong correlation of major earthquakes with solid-earth tides in part of the eastern United States
East of the eastern American continental divide and south of fat 42.5°N, moderate to large historic earthquakes correlate strongly with times of high and low solid-earth tides. This effect is most pronounced when solar declination lies between 17°N and 17°S. Significant correlations also exist between major earthquakes, time of day, lunar declinations, and lunar phase.
Authors
R.E. Weems, W.H. Perry
Geologic map of the Moncks Corner quadrangle, Berkeley County, South Carolina Geologic map of the Moncks Corner quadrangle, Berkeley County, South Carolina
No abstract available.
Authors
R.E. Weems, Earl M. Lemon
Geologic map of the Ladson quadrangle, Berkeley, Charleston, and Dorchester Counties, South Carolina Geologic map of the Ladson quadrangle, Berkeley, Charleston, and Dorchester Counties, South Carolina
No abstract available.
Authors
R.E. Weems, Earl M. Lemon
Earthquake-induced liquefaction features in the coastal South Carolina region Earthquake-induced liquefaction features in the coastal South Carolina region
No abstract available.
Authors
S. F. Obermeier, R.E. Weems, R. B. Jacobson