INTEGRATION OF REMOTE SENSING DATA AND FIELD STUDIES IN STUDYING OF VOLCANIC ROCKS IN SOUTHERN PART OF SYRIA

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Year:
2016
Type of Publication:
Proceedings
Keywords:
space images, mapping, K and Ar dates
Authors:
Rukieh, Prof. Dr. Mohamad
Abstract:
Volcanic Basaltic Rocks covered more than 6000 km2 in southern Syria which belong to Neogene and Quaternary. And continues to Jordan up to Saudi Arabia, where it is known as Harrat Ash Shaam. It is the largest Late Cenozoic basaltic field in the region. Methodology of the work in this study adopts, on the integration of the space and the Ground data and linked with geographical information systems, and integration between the office and field works. We had studied these rocks by interpretation of many space images with different types and scales (TM, spot, Russian) and different resolution from 30m to 5m in Russian Images We prepared with field truth number of Tectonic and leto-tectonic schemes in different scales (1\ 6000000, 1\ 500000, 1\ 200000, 1\ 50000).(we present part of them in this article). These schemes have showed the tectonic settings and different volcanic lavas in the studied area. It has shown about 400 Volcano, most of them associated with regional faults extended from south of Arabic platform to the North West direction. The type of eruptions is intercontinental. There are important eruption centers, which have annular forms, the first one is located in Alsweida area, and the second located in Telol Alsafa area. Also it have many annular structures, the diameters of which are ranging from several 10 m to tens km. The detailed schemes show new information about the Quaternary lava, which provisions in its shape and time of its accruing. The number of it reaches to 11 lavas by our interpretation, while it not more than 6 lavas in geological maps. One important Phenomena has shown in Telol Alsafa area, its are wind erosion extended to the east direction for more than 100km.in a straight lines. Our field work shows the phenomena have tectonic base. The field work and absolute age basalt samples K-Ar dating, shows the age of Volcanic flows beginning from 18, 5 Ma until the Early Holocene generations with the Neolithic artifacts on the surface, and younger flows, which erupted from small volcanoes within the lava field and covered constructions and signs of inhabitation dated archaeologically as of Neolithic, Chalcolithic and even Early Bronze Age. The most recent flows can be dated back to the beginning of the second half of the III millennium BC. With Bones of animals in it in Khirbet El-Umbashi, and Hebariye places.
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