USGS Sample Metadata Workshop
The ESIP-USGS 2020 USGS NDC workshop focused on an update to collection level thematic profiles. The workshop also addressed mapping common metadata elements between geoscience data (geological, geophysical, and engineering data, maps, photographs, samples, and other physical specimens) and collections. Guiding the effort were work in progress with samples metadata element mapping, Biodiversity Information Standards (TDWG) for samples and collections, and SESAR - International Geo Sample Number IGSN.
Improving Collections Metadata for the USGS National Digital Catalog (NDC)
Community standards, user stories and workgroup consensus have been used to develop preliminary collection level thematic profiles. Where possible metadata elements have been mapped across existing standards/dialects for consistency and interoperability. Draft profiles were developed from the ESIP-USGS 2020 USGS National Digital Catalog (NDC) workshop.
Agent objects have been suggested to handle author/contact metadata elements.
Community-recommended controlled vocabularies have been suggested for key metadata elements.
Additional effort is needed to define and refine metadata date fields specifically to make them appropriate across and specific to thematic profiles.
TDWG Collection Descriptions presentation 
Extract of Biodiversity Information Standards (TDWG) Collections Descriptions