Leverett Formation, Mt. Webster, Harold Byrd Mountains

4 Leverett Formation, Mt, Webster, Harold Byrd Mountains 

1 Stratigraphy of the Lower Part of the Leverett Formation on Mt. Webster (Minshew1967 Fig.6.17) 

2 Chemical Analysis of Sample 228 Felsic Pyroclastic, Leverett Formation, 

43 Rb-Sr Systematics of Felsic Pyroclastics of Unit G of the Leverett Formation, 

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The Sr/ Sr ratios of two Cambrian limestone formations of known marine origin (i.e., the Nelson Limestone, Pensacola Mountains, and limestone of the Leverett Formation, Mt. Webster, Harold Byrd Mountains) are both consistent with the Sr/ Sr ratio of Cambrian seawater. In addition, the Sr/ Sr ratio of one carbonate sample from the Triassic Fremouw Formation plots close to the seawater curve... 

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