Dendritic dry valleys in the cone karst of Puerto Rico
Journal of Research of the U.S. Geological Survey
By: Watson H. Monroe
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Abstract
The depressions in the cone karst (Kegelkarst) of the area west of Ciales in the Lares Limestone are alined in dry valleys that have dendritic patterns. These valleys apparently record the former existence of a cover of noncalcareous clastic material that was deposited on the limestone in late Tertiary time. One system of dendritic dry valleys ends at an abandoned meander of the Rio Grande de Manati, which is about 60 m above the present floor of the river. Another system leads to large masses of "blanket sand" near the town of Florida. These valleys were apparently eroded during the late Pliocene or very early Pleistocene when sea level was at least 80 m higher than it is today.
Study Area
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Dendritic dry valleys in the cone karst of Puerto Rico |
| Series title | Journal of Research of the U.S. Geological Survey |
| Volume | 2 |
| Issue | 2 |
| Year Published | 1974 |
| Language | English |
| Publisher | U.S. Geological Survey |
| Description | 5 p. |
| First page | 159 |
| Last page | 163 |
| Country | United States |
| State | Puerto Rico |
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