NOTE: This file contains transcribers notes to accompany the original file (README.txt).

This data is a conversion product and should not serve as the primary source for the complete geologic information for this area. To obtain complete information, please go to https://pubs.usgs.gov/ds/771/.  This information may be found as referenced below:

Publisher:	U.S. Geological Survey	
Title:		Database for the geologic map of Newberry Volcano, Deschutes, Klamath, and Lake Counties, Oregon
Author:		Bard, J.A., Ramsey, D.W., MacLeod, N.S., Sherrod, D.R., Chitwood, L.A., and Jensen, R.A.
Original NGMDB identifier: 98541


Purpose: This file set is intended to make outdated personal geodatabase files available as open-format shapefiles. No modification to files has been made.

Process: Personal geodatabase files were converted to shapefile using the ArcMap command “Feature Class to Shapefile”. Related tables were exported to text file.  

Personal geodatabase files convert to (descriptions extracted from https://pubs.usgs.gov/ds/771/database/site/data.html):
newberry_volcano_geology.mdb =
	newberry_volcano_regional/ (Sheet 1 map, 1:62,500 scale)
		geologic_lines_regional.shp (Contacts between rock units, fault lines offsetting rock units, subsurface dike-filled fissures)
		geologic_units_regional.shp (Rock units)
		geothermal_wells_regional.shp (Locations of geothermal exploration wells)
		hydrothermal_features_regional.shp (Locations of fumaroles and hot springs)
		tephra_isopachs_regional.shp (Isopach tephra thickness delineations)
		tephra_measurements_regional.shp (Local tephra thickness measurements)
		volcanic_vents_regional.shp (Locations of Holocene silicic vents)
	newberry_volcano_crater/ (Sheet 2 map, 1:24,000 scale)
		analyzed_rock_samples_crater.shp (Locations of analyzed rock samples)
		bathymetry.shp (Bathymetric depth contours)
		geologic_lines_crater.shp (Contacts between rock units, fault lines offsetting rock units, subsurface dike-filled fissures)
		geologic_units_crater.shp (Rock units)
		geothermal_wells_crater.shp (Locations of geothermal exploration wells)
		hydrothermal_features_crater.shp (Locations of fumaroles or hot springs)
		obsidian_flow_craters.shp (Locations of craters pocking surfaces of Big Obsidian Flow and Interlake Obsidian Flow)
		tephra_isopachs_crater.shp (Isopachs of tephra thickness)
		tephra_measurements_crater.shp (Local tephra thickness measurements)
		volcanic_vents_crater.shp (Locations of Holocene silicic vents)


Original files included:
	README.txt = readme
	newberry_volcano_regional.html = metadata
	newberry_volcano_crater.html = metadata


Modified: 24 May, 2024 by Karen Morgan, USGS contractor 
