1. It is the largest of the northern deltaic lakes of Egypt. 2. The channel is bordered by extensive, deltaic mangrove forests. 3. 325 million years ago Illinois was covered in heavily forested deltaic swamps. 4. The depositional environment was probably coastal, deltaic or estuarine in character. 5. This has caused some deltaic villages to be relocated to higher ground. 6. Within these deltaic sequeneces, a number of shale units were deposited. 7. The second contiguous geographical region is deltaic alluvial plain. 8. During the Barremian-Aptian, two elongated marine deltaic and brackish environments. 9. The thickness of the group varies from of deltaic shales with interbedded sandstones. 10. It is located on one of the many deltaic islands spread across southern Bengal.
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