Skip to main content
U.S. flag

An official website of the United States government

Compositions, ages, and diagenetic histories of the carbonate, sulfide, oxide, and phosphatic concretions at Gay Head, Massachusetts

January 1, 1988

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

Publication Year 1988
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
Was this page helpful?