. Bulletin of the British Museum (Natural History), Geology. FROM GEBEL ZELTEN, LIBYA 287 sharply from the northern before merging at the extreme western extremity (see text-fig. i). The Gebel Zclten is deeply dissected by wadis that often reach 3 kms in length. Most of the vertebrate sites are located in branches of the wadi systems. The rocks exposed at the Gebel Zelten are of Miocene age and were attributed by Selley (1966) to the Marada Formation. The rocks represent the mixed fluvio- marine facies of the southern part of the Sirte Basin. The succession at Gebel Zelten is predominantly of
. Bulletin of the British Museum (Natural History), Geology. FROM GEBEL ZELTEN, LIBYA 287 sharply from the northern before merging at the extreme western extremity (see text-fig. i). The Gebel Zclten is deeply dissected by wadis that often reach 3 kms in length. Most of the vertebrate sites are located in branches of the wadi systems. The rocks exposed at the Gebel Zelten are of Miocene age and were attributed by Selley (1966) to the Marada Formation. The rocks represent the mixed fluvio- marine facies of the southern part of the Sirte Basin. The succession at Gebel Zelten is predominantly of sandstone, sandy shales and shales, the units dipping northward at an angle of about six seconds (Doust, 1968). According to Doust, the base of the section at the northern scarp consists of intertidal and fluviatile sands and shales that pass upward into bioturbated calcarenites and calcsilicates representing intertidal and subtidal facies. The top of the succession comprises calcareous crossbedded sandstones from an estuarine channel facies. On the southern scarp a mixed intertidal and fluviatile fades passes upwards into intertidal sediments that are ultimately overlain by the estuarine channel facies. Detailed discussions of the geology are given in Selley (1966,1967,1968), Doust (1968), and Magnier (1962,1968).. Transportation Corner LIBYA Fig. I. Vertebrate localities of the Gebel Zelten. Sites D, E, F and G are located between sites C and Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original British Museum (Natural History). London : BM(NH)
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