Compositions, ages, and diagenetic histories of the carbonate, sulfide, oxide, and phosphatic concretions at Gay Head, Massachusetts
The calcite/ankerite concretions were formed in a hot, seasonally arid, caliche-prone environment of early Raritan age; the pyrite, marcasite, and siderite concretions precipitated in sediments deposited in low-energy, marshy, estuarine environments of late Raritan age. The phosphate concretions formed in a middle to inner shelf environment. The goethite and lepidocrocite concretions are secondary oxidation or alteration products of the prexistent Cretaceous concretions that were excavated during the Pleistocene and incorporated into the glacial drift. -from Authors
Citation Information
Publication Year | 1988 |
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Title | Compositions, ages, and diagenetic histories of the carbonate, sulfide, oxide, and phosphatic concretions at Gay Head, Massachusetts |
Authors | L.J. Poppe, R.F. Commeau, Dennis W. O'Leary |
Publication Type | Article |
Publication Subtype | Journal Article |
Series Title | Northeastern Geology |
Index ID | 70014174 |
Record Source | USGS Publications Warehouse |