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Geology and mineral deposits of the Venezuelan Guayana Shield
[report]
1995
unpublished
Preserved Fulltext
Cover. Detail of pseudokarst labyrinth on summit platform of Cerro Roraima, Venezuela. The pervasively cross stratified quartzose of the Matauf Formation that forms the summit platform has been deeply etched by orographically intensified rainfall estimated at about 5 m per year. High-angle-oblique aerial view from a height of about 300 m. Photograph by John Dohrenwend.
doi:10.3133/b2124
fatcat:thab64qa2zaebjpvp6vjemtiaq