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CAVEPS and Quaternary Extinction Symposium
March 29 - April 2, 2005
Naracoorte, SA, Australia
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deadline until next week.
2nd
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“The World of Elephants”
Hot Springs, South Dakota, USA September 22-25, 2005
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Friends of the Pleistocene: New 1999 Trips
Pacific Northwest Cell
Tentatively: Sept. 18, 19, 1999
Lower Columbia River
The trip will focus on the lower Columbia River, essentially from the crest of the
Cascades (Stevenson, WA) to Clatskanie, OR (about 10 miles upstream from the mouth). As
I'm an archaeologist, the theme of the trip will be the interface between geology and
archaeological sites. Beginning in the 1970's a number of archaeologists working on the
lower Columbia speculated that known or suspected geological "catastrophes"
caused identifiable changes in prehistoric settlement patterns, primarily in the Portland
Basin. Although this idea received a great deal of attention in archaeological research
and publications, there was a marked lack of input from the geological community. This
began changing in the early 1990's as a result of geological hazards research by the USGS.
Archaeology provides the missing ingredient. The human response to geological processes
will be discussed (and debated, I'm sure) at Chinook Indian villages and resource
processing sites near Bonneville Dam, Airport Way in Portland, the lower Columbia Slough,
Ridgefield National Wildlife Refuge and near Clatskanie, Oregon. For geological purists,
we'll look at landslides (large and small), lahar sequences on the Sandy and Lewis rivers,
Bretz Floods features just about everywhere and Holocene alluvial landforms and sediments
on the largest but least studied river in the world, the Columbia. The base camp will be
at Oxbow Regional Park on the Sandy River about 8 miles from Troutdale, Oregon. Contact:
Alex Bourdeau, US Fish and Wildlife Service, 20555 SW Gerda Lane, Sherwood, OR 97140, 503
625-4377; fax: -4887; alex_bourdeau@ fws.gov
Midwest Cell
May 21-23, 1999
Goshen, Indiana
The 1999 Midwest FOP Field Conference will convene approximately 20 miles southeast of
South Bend, IN. The field trip will focus on Late Wisconsin interactions of the Saginaw,
Lake Michigan and Huron-Erie Lobes in north central Indiana and south-central Michigan. If
you are not on the Midwest FOP mailing list and would like to receive the first
announcement please contact Steve Brown, Indiana Geological Survey, at
steebrow@indiana.edu.
Pacific Cell
The Pacific Cell FOP at Yucca Mountain was a success. One hundred and sixty people
attended; the weather was beautiful; and site clearances to visit the Nevada Test Site
were approved without problem. A few field guides are available for $10 from Emily Taylor,
emtaylor@ usgs.gov.
The 1999 Pacific Cell
meeting will be organized by Charlie Narwold. The trip will focus on Late Quaternary
Faulting and Pluvial Lake History of the North Quinn River and Alvord Valley, Southeastern
Oregon. Contact Charlie Narwold, cfn1@axe. humboldt.edu
Rocky Mountain Cell
September 10-12, 1999
Quaternary and Environmental Geology of the Southwest San Juan Mountains, Colorado
Principal leaders: Mary L. Gillam, consulting geologist; Robert W. Blair, Fort Lewis
College; and Stanley E. Church, U.S. Geological Survey. Co-leaders: Scott Elias, INSTAAR;
Robert W. Kirkham, Colorado Geological Survey; Thomas Perry, consultant; Fred Phillips,
New Mexico Tech; and others.
This trip, which is still being planned, will address natural processes and deposits in
formerly glaciated and unglaciated areas as well migration of heavy metals from
mineralized zones. It will focus on the Animas River valley in Colorado and New Mexico but
may include other areas if time allows. Tentative themes will be the influence of
climatic, tectonic, and bedrock controls on moraine, terrace, and related deposits; dating
by radiocarbon, amino-acid, and incision-rate methods; and contaminant movement in
alluvium of late Holocene and historic age. Proposed stops will feature moraines,
terraces, rock glaciers, landslides, loess, soil development, Lava Creek B ash,
heavy-metal contamination, and post-glacial deposits at Lake Emma. A pre-meeting hike to
remote sites may be added. For more information, please contact Mary L. Gillam at 115
Meadow Road East, Durango, CO 81301, (970) 259-0966, gillam@rmii.com
Northeast Cell
May 21-23, 1999
Central Pennsylvania
The 1999 Northeastern FOP trip will focus on paleo-periglacial features and landscapes
near the glacial margin in the Ridge and Valley, in central Pennsylvania. Introductory
activities will begin at Bucknell University on the evening of May 21. The trip will begin
in Lewisburg, Pennsylvania - near the center of the state, at the intersection of I 80 and
the West Branch of the Susquehanna River. We will:
*visit good examples of familiar periglacial features: sorted patterned ground, boulder
fields, tors, debris fans and ancient fan fragments, dunes, loess, and shale chip
colluvium;
*examine some periglacial features not previously seen on a FOP trip - ground ice scars,
wind-transverse nivation welts, and associated thermokarst(?) features; and
*review the relative positions of Pre Wisconsin till bodies, outwash surfaces, stream
derangements, and terraces. These features have been mapped carefully enough that
assertions can made about their temporal and spatial relationships; that is we can
tentatively:
*reconstruct units of landscape back to late Wisconsin times;
*understand the local circumstances - soil, drainage, slope, aspect - under which
different periglacial features developed, failed to develop, or were destroyed during
deicing; and
*establish pieces of relative chronology - showing which events must have preceded which
other ones.
The first day's trip will travel west from the river into the high sandstone ridges to
view the vigorously deformed slopes and upland valley floors. Then we'll go south into the
broad lowlands to visit: high fan remnants, periglacially deformed pre-Wisconsin moraine
and outwash features, boulder colluvium and shale-chip colluvium of Wisconsin and earlier
age, and complex outwash and terrace surfaces. The briefer second day will follow the
Susquehanna north, looking at aeolian sand and silt deposits, classic levels of
Susquehanna terraces, and thick pre-Wisconsin tills including some punctured by karst.
For registration materials (to be sent in the Spring) or for more information contact: Ben
Marsh, Department of Geography, Bucknell University, Lewisburg, PA 17837; 717-524-1381
(which becomes 570-577-1381 after January 1st); marsh@bucknell.edu
Southeast Cell
October 8-10, 1999
Soils and Quaternary Geology of the Big Sandy Valley, West Virginia and Kentucky
Place: Caveland Lodge, Carter Caves State Resort Park, NE Kentucky
Leader: David Cremeens, GAI Consultants, 570 Beatty Rd., Monroeville, PA 15146;
412-856-6400 x3234; dlcremeens@ aol.com or env_engineering@gaiconsultants.com
1998 SE FOP trip report:
The 1998 Southeastern FOP field trip was held Nov. 13-15 at Camp Broadstone, near Boone,
NC. It was partially sponsored by Appalachian State University. The leaders were Hugh
Mills (Tennessee Tech), Ellen Cowan (ASU), Keith Seramur (ASU and Geonetics Corporation),
Loren Raymond (ASU), John Allison (formerly NC Department of Environment, Health, and
Natural Resources, now private consultant), and Louis Acker (NC Department of
Transportation). The trip concentrated on sediments, forms, and soils of "fans"
on piedmont slopes of several high mountains in the Blue Ridge Mountains of North
Carolina. On the 14th we visited Roan Mountain, where we examined surfaces and exposures
of fans ranging in age from Holocene to pre Illinoian. Efforts to determine thicknesses of
deposits using geophysical techniques were discussed. Some highlights were a backhoe pit
on a well preserved fan remnant that stands 20 m above modern drainageways, a climb up an
even higher fan remnant with exposures showing the bulk of the landform to be saprolite.
On the 15th, the weather dawned clear and brisk, and we set off for the west flanks of
Rich and Snake mountains. The upper slopes of these mountains are underlain largely by
amphibolite so that amphibolite clasts are abundant in the fan deposits. This lithology
forms excellent weathering rinds, which have been used extensively for relative-age dating
and mapping of fan surfaces. Exposures showed that deposits here are thinner than and lack
the large boulders typical of those at Roan Mountain. Perhaps as a consequence, fan
remnants here are less well preserved, evolving to rounded ridges as they age. An
environmental case study involving contaminant migration showed the practical importance
of locating the contact between fan debris and the underlying saprolite.A total of 76
people attended at least part of the two-day trip. Several copies of the field guide
remain and are available from Hugh Mills (Box 5062 TTU, Cookeville, TN 38501).
South Central Cell
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