Abstract

The Beck Spring dolomite is divided into three informal members: lower laminated--150-200 m of alternating laminae of pelletal and mosaic dolomite; middle oolitic--100-150 m of mosaic dolomite with oolite, pisolite, and grapestone; and upper cherty--100-150 m, similar to the oolitic except that it includes stromatolites and has been partially silicified and dolomitized. The lower laminated member was deposited in a supratidal environment, and the middle and upper members were deposited in shallow, agitated waters of a subtidal environment. The characteristics of the Beck Spring Dolomite are similar to those of sediments now being deposited in parts of the Bahama Banks.

You do not currently have access to this article.