By D. Worsley, M.A. Sola
The Murzuq Basin is a huge intracratonic sag basin positioned in southwestern Libya. Exploration efforts began during this monstrous and distant Saharan quarter already in 1957 and 60 exploratory wells were drilled up to now, leading to over 20 discoveries with round 4,000 million barrels of oil in position. such a lot discoveries were made in Ordovician sandstone reservoirs sourced through sizzling shales of the decrease Silurian Tanezzuft Formation. Oil is already being produced and exported from the world, however the basin's overall hydrocarbon capability continues to be poorly understood. contemporary exploration - specifically the most important discovery and preliminary improvement of the enormous "Elephant" box - has vastly elevated curiosity for the area's power. Many petroleum geologists and firms now think that the basin could turn into a brand new significant hydrocarbon province in an effort to considerably give a contribution to Europe's power wishes within the subsequent decades.
This e-book offers papers from a convention held at Sebha collage - at the jap margins of the Murzug Basin - in September 1998. The publication keeps an ongoing sequence of shows of the geology of Libya, however the 25 contributions herein often centre at the Murzuq Basin itself and on within reach parts. There are nonetheless many unresolved questions when it comes to geological and hydrocarbon exploration in those tough wilderness parts, however the papers herein will confidently current a primary accomplished evaluate of an exhilarating frontier exploration sector. approximately 1/2 the papers are without delay relating to hydrocarbon exploration, and to resource rock and reservoir improvement, yet a large choice of alternative positive factors also are defined, starting from palaeontology and biostratigraphy to ore geology and water assets, masking the total geological column from the Precambrian to the Holocene. The e-book concludes with a bibliography protecting all geological points of this demanding yet very promising frontier sector.
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Additional info for Geological exploration in Murzuq Basin: the Geological Conference on Exploration in the Murzuq Basin held in Sabha, September 20-22, 1998
We conclude that surface water has played an important role in the concentration of the B ir Nagaza radioactive elements, but these concentrations have been controlled by tectonic elements rather than by present-day topography. Better understanding of faulting and fracturing in the region will help to determine the most favourable locations for the concentration of radioactive mineralisation. INTRODUCTION The Bir Nagaza area, which lies on the western flanks of the Murzuq Basin (Fig. 1), has been explored for uranium since 1974.
HARDENBOL, J. and VAIL, ER. (1988). Mesozoic and Cenozoic chronostratigraphy and cycles of sea-level change. K. S. J. W. A. C. Van Wagoner (Eds). M. Spec. , 42, 71-101. , OLSEN, EE. K. (1995). Late Triassic-earliest Jurassic geomagnetic polarity sequence and paleolatitudes from drill cores in the Newark rift basin, eastern North America. Jour. Geophys. , 100(B8), 14965-14998. V. B. (1995). Palaeomagnetism and cyclostratigraphy of the Triassic Fleming Fjord and Gipsdalen formations of East Greenland.
If the sediment has been remagnetised after the time of deposition and/or the primary magnetic minerals dissolved it may be impossible to determine the primary magnetic component. In this case the apparent MPS cannot be used for chronostratigraphy. For subsurface well cores from petroleum reservoirs the possibility for remagnetisation is high due to the changing geochemical environment that the sediments have experienced during diagenesis. Sulphide-rich brines may have dissolved the primary magnetic minerals and caused growth of new magnetic phases.
Geological exploration in Murzuq Basin: the Geological Conference on Exploration in the Murzuq Basin held in Sabha, September 20-22, 1998 by D. Worsley, M.A. Sola