The basin and range viewed from Borah Peak, Idaho.
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Abstract
In 1883, the brilliant geologist G. K. Gilbert wrote an article for the Salt Lake Tribune, "A theory of earthquakes of the Great Basin," which began:
There are many geologists who are very wise, but even they do not understand the forces which produce mountains. And yet it must be admitted, not only that mountains have been made, but that some mountains are still rising (Gilbert, 1884).
Today, more than a hundred years later, Borah Peak has proved to be among those mountains still rising. During the 28 October 1983 M=7 Borah Peak, Idaho, earthquake, the Lost River Range that Borah Peak caps was lifted 20-30 cm relative to distant points, and was tilted downward away from the range-bounding Lost River fault. The downthrown side of the fault, which subsided as much as 120 cm, was also tilted down toward the fault. The similarity between the earthquake deformation and the cumulative deformation preserved by the dip of strata is striking; it tends to confirm Gilbert's notion that Basin-and-Range topography is built by repeated slip events on normal faults that bound the range. The U.S Geological Survey had just published a preliminary volume of 40 research papers on the Borah Peak earthquake, focusing on the surface faulting, seismology, geodesy, hydrology, and geology of the earthquake and tis setting (Stein and Bucknam 1985). Also included is a field guide to the spectacular earthquake landforms, such as sruface rupture, exploratory trench excavations, sand blows, and landslides.
Study Area
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | The basin and range viewed from Borah Peak, Idaho. |
| Series title | Earthquake Information Bulletin (USGS) |
| Volume | 17 |
| Issue | 3 |
| Year Published | 1985 |
| Language | English |
| Publisher | U.S Geological Survey |
| Description | 8 p. |
| First page | 98 |
| Last page | 105 |
| Country | United States |
| State | Idaho |
| Other Geospatial | Borah Peak, Idaho |
| Online Only (Y/N) | N |
| Additional Online Files (Y/N) | N |
| Google Analytic Metrics | Metrics page |