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Open-File Report O-14-01, Geologic map of the southern Oregon coast between Port Orford and Bandon, Curry and Coos Counties, Oregon, by Thomas J. Wiley, Jason D. McClaughry, Lina Ma, Katherine A. Mickelson, Clark A. Niewendorp, Laura L. Stimely, Heather H. Herinckx, and Jonathan Rivas
Order publication CD, $30, from Nature of the Northwest. CD contains a 66-page pamphlet PDF, three 1:24,000-scale map plate PDFs, Esri ArcGIS® 10.1 geodatabase, GIS files, and Excel spreadsheets. Note: This publication continues geologic mapping along the southern Oregon Coast; see Open-File Report O-13-21, Geologic map of the southwestern Oregon coast between Crook Point and Port Orford, Curry County, Oregon for previous mapping.
Contents of CD-ROM are listed below.
From the introduction to the report:
The core product of this product is an Esri ArcGIS™ ArcMap™ 10.1 format geodatabase that combines new and existing mapping in a digital format consistent with the digital statewide Oregon Geologic Data Compilation database (OGDC-5).
This report, digital geodatabase, and the accompanying set of geologic maps were prepared to provide an updated and spatially accurate geologic framework for the southern Oregon coast between Port Orford and Bandon in westernmost Curry and Coos counties (Figure 1). Geologic mapping summarized here represents one part of a multi-year project to map the Oregon coast from the California border north to Coos Bay (Figure 2). Three geologic map plates cover the Cape Blanco – Sixes quadrangles (Plate 1), Floras Lake – Langlois quadrangles (Plate 2), and Bandon quadrangle (Plate 3) at a scale of 1:24,000. These maps show the distribution of contrasting lithologies, critical structural relationships, and surficial geology. They refine our understanding of geologic conditions that control the distribution, quantity, and quality of groundwater resources, the distribution of terrain susceptible to landslides, the nature of seismic hazards, and the distribution of potential aggregate sources and other mineral resources. The geodatabase contains spatial information about geologic polygons and structures and basic data about each geologic unit such as age, lithology, mineralogy, and structure. The geodatabase is supported by this report, which describes the geology, and digital appendices with geochemical, geochronological, structural, and subsurface data interpreted from water wells. Digitization at scales of 1:8,000 or better was accomplished using georeferenced lidar base layers. This geodatabase forms a basis for future geologic, geohydrologic, and geohazard studies in the area. The map plates and database were prepared to show the inferred distribution of bedrock beneath surficial units. Both bedrock and surficial geologic relationships can be interpreted from the maps and geodatabase.
Plate 1. Geologic map of the Cape Blanco and Sixes 7.5-minute quadrangles, Curry County, Oregon, scale 1:24,000, 41 x 34 inches
Plate 2. Geologic map of the Floras Lake and Langlois 7.5-minute quadrangles, Curry and Coos Counties, Oregon, scale 1:24,000, 34 x 34 inches
Plate 3. Geologic map of the Bandon 7.5-minute quadrangle, Coos County, Oregon, scale 1:24,000, 31 x 34 inches
CONTENTS OF CD-ROM:
GEODATABASE folder: Esri ArcGIS v10.1 (SP 1) geodatabase:
- Geology_FC dataset
- Relationship table files:
hold all of the relationships created to connect or relate the supplemental tables to each other, or to the MapUnitPolys feature class
GIS folder (shp files):
Plate 1. Geologic map of the Cape Blanco and Sixes 7.5-minute quadrangles, Curry County, Oregon, scale 1:24,000
Plate 2. Geologic map of the Floras Lake and Langlois 7.5-minute quadrangles, Curry and Coos Counties, Oregon, scale 1:24,000
Plate 3. Geologic map of the Bandon 7.5-minute quadrangle, Coos County, Oregon, scale 1:24,000
PAMPHLET folder: Report text to accompany plates and geodatabase
O-14-01-pamphlet.pdf (300-dpi Adobe PDF)
Text report figures and tables in various formats (.jpg, .ai, .xlsx)