Skip to main content
U.S. flag

An official website of the United States government

Conodont and petrographic information to support 1:24,000-scale geologic mapping of the Cambrian and Ordovician rocks of the southern Lake Champlain valley

July 13, 2026

Conodonts were collected in the southern Lake Champlain valley to aid in identifying lithostratigraphic units, determining biostratigraphic zonations, and correlating to other regions. The conodonts were identified by experts in Cambrian and Ordovician micropaleontology. Microslides/thin sections were made of different lithostraphigraphic units of the southern Lake Champlain valley to develop a microfacies model to understand paleoenvironments that made up the Cambrian and Ordovician of this region. Thin-sections were described by experts in sedimentary and carbonate petrology.

Publication Year 2026
Title Conodont and petrographic information to support 1:24,000-scale geologic mapping of the Cambrian and Ordovician rocks of the southern Lake Champlain valley
DOI 10.5066/P1IFLU79
Authors Randall C Orndorff, Mercer Parker, Stephen A Leslie, John E Repetski, John T Haynes
Product Type Data Release
Record Source USGS Asset Identifier Service (AIS)
USGS Organization Florence Bascom Geoscience Center
Rights This work is marked with CC0 1.0 Universal
Was this page helpful?