Sedimentary and mineralogical study of concreations structure in Jabil sanam, southern Iraq | ||
| مجلة آداب البصرة | ||
| Article 12, Volume 10, Issue 71, November 2014, Pages 287-306 PDF (0 K) | ||
| Author | ||
| N.A.I. Al-Najar | ||
| Abstract | ||
| Seven sections of different types of concretions were studied mineralogical by using X.R.D. , and petrographical in thin section for seven selected sample . The mineralogical and petrographical studies where showed the siliceous, carbonate, and dolomitic of concretions’ in layer of limestone and marl , in edition lime-siliceous spherical structure in layer of limesandston. Three types of concretions were distinguished :spherical lime concretion which contain foraminifera as sptaria form , rounded shape of dolomitic concretion , silicate noudle (chert) and geode. The origin of concretion were barial processes , replacing and growth mineral around foraminifera and algae. | ||
| Keywords | ||
| Sedimentary and mineralogical study of concreations structure in Jabil sanam; Southern Iraq | ||
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