Category:Bass Limestone

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English: The lowermost member, en:Bass Formation, (also Bass Limestone-(formerly), of the en:Unkar Group.
  • It is found in northeast Grand Canyon; also center (east) associated with Granite Gorge.
  • Members of 5-unit Unkar Group:
    5--en:Cardenas Lava-(cliff-former, "mountain islands"-(en:manadnock), Tapeats Sea)
    4--Dox Formation-slopes
    3--Shinumo Quartzite-(cliff-former, "mountain islands"-(en:manadnock), Tapeats Sea)
    2--en:Hakatai Shale-slopes
    1--en:Bass Formation-slopes
  • Multi-colored slopes are created, for example at Isis Temple (Bright Angel Canyon region), and also contain debris from the Shinumo cliffs, or other geologic units above.

Subcategories

This category has only the following subcategory.