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利比亚西北部的Hamada盆地是一克拉通内盆地,古生代时沉积了厚层碎屑岩层序。这些沉积的物源来自前寒武系基底的长英质火成岩和变质岩,包括砂岩和粘土岩。古生代地层中所有粘土几乎都是长石的风化产物。当沉积物披覆在基岩表面上时,便发育成构造。下古生界(下泥盆统、下志留统和寒武—奥陶系砂岩)中的储集岩似乎是同沉积作用,诸如沉积期间或沉积之后不久发生的,由渗滤水簸扬作用和冲刷作用以及陡倾沉积作用面上的滑动和坍塌作用产生的。油气圈闭与构造高无关,但看来是发育在那些陡峭得足够引起上述同沉积过程的沉积作用面上。这种理论已在该盆地的许多地方得到成功的检验,而且为利比亚其它类似地质背景的盆地勘探提供了一个典范。
The Hamada basin in northwestern Libya is a cratonic basin with thick clastic sequence deposited during the Paleozoic. These sedimentary sources are derived from the metamorphic rocks of the metamorphic rocks of the Precambrian basement, including sandstone and clay rock. Almost all of the clay in Paleozoic formations is the weathering product of feldspar. When sediment drapes over the bedrock surface, it evolves into a structure. The reservoir rocks in the Lower Paleozoic (Lower Devonian, Lower Silurian and Cambrian-Ordovician sandstones) appear to be synsedimentary, such as occurs during or shortly after deposition, and is driven by percolation water And the role of erosion and steep sedimentary role of the surface sliding and collapse caused. Hydrocarbon traps have nothing to do with tectonic height but appear to be deposited on sedimentary surfaces that are steep enough to cause the above-mentioned isochronism. This theory has been successfully tested in many parts of the basin and has provided a model for other basin exploration in Libya with similar geological settings.