GE009
Upper Blue River geology clipped to the Andrews Experimental Forest, 1991

CREATOR(S): Frederick J. Swanson

PRINCIPAL INVESTIGATOR(S): Frederick J. Swanson

ORIGINATOR(S): Frederick J. Swanson

DATA SET CONTACT PERSON: Theresa J. Valentine

METADATA CONTACT: Theresa J. Valentine

ABSTRACTOR: George W. Lienkaemper

DISTRIBUTOR: Theresa J. Valentine

FORMER INVESTIGATOR: Michael E. James

DATA SET CREDIT:

Swanson, F.J. and M.E. James 1975. Geology and geomorphology of the H.J.Andrews Experimental Forest, western Cascades, Oregon. USDA For.Serv.Res. Pap. PNW-188, 14p.,illus. PNW Forest and Range Experiment Station, Portland, OR. Priest, G.R., G.L. Black, N.M. Woller and E.M. Taylor 1988. Geologic map of the McKenzie Bridge quadrangle, Lane Co., Oregon. Oregon Dept of Geology and Mineral Industries Geologic Map Series GSM-48, scale 1:62500 Walker, G.W. and R.A. Duncan 1989. Geology of the Salem 1X2 degree quadrangle, western Oregon. USGS Miscellaneous Investigations Series Map I-1893, scale 1:250000

METADATA CREATION DATE:

3 Nov 2004

MOST RECENT METADATA REVIEW DATE:

12 Dec 2013

KEYWORDS:

Disturbance, Disturbance, geology, geomorphology, minerology, history, mapping, disturbance

PURPOSE:

To support research management, i.e., study site selection, infrastructure improvement, and climate summaries within the HJ Andrews Experimental Forest

METHODS:

Processing Procedures - GE009:

Description:

GE00901: Rock units of parts of the Blue River basin (including the Lookout Creek watershed and upper Blue River above the junction with Lookout Creek), were described by several investigators who covered different portions of the basin at different scales. A unit correlation table was developed (see below) and units were manuscripted using Priest .et .al (1988) for Lookout Creek and Walker and Duncan (1989) for upper Blue River. Units were digitized and attributed using the investigators' descriptions. The upper Blue River geology layer was clipped by the H.J. Andrews boundary to create this layer. Rock unit strength was added as an attribute when the geology layer was used in a landslide hazard analysis. Rock strength was determined by Swanson based on rock type and age.

map unit boundaries are a mixture of Priest etal and Swanson and James (1975) for their mapped areas

Citation: F.J. Swanson and M.E. Jones. 1975. Geology and geomorphology of the H.J. Andrews Experimental Forest, western Cascades, Oregon. Portland, OR. PNW Forest and Range Experiment Station. USFS Forest Service Research Paper PNW-188. 14p, illustrations.

SUPPLEMENTAL INFORMATION:

Digitized in-house from geologic maps prepared by Walker and Duncan (1989), Priest et. al. (1988), and Swanson and James (1975).

TAXONOMIC SYSTEM:

None

GEOGRAPHIC EXTENT:

Andrews Experimental Forest within the Willamette National Forest, western Cascades, Oregon, USA.

ELEVATION_MINIMUM (meters):

ELEVATION_MAXIMUM (meters):

PROGRESS DESCRIPTION:

Complete

UPDATE FREQUENCY DESCRIPTION:

notPlanned

CURRENTNESS REFERENCE:

Observed