The Salt Range is clearly the active participant in the scenario of the progressive southward migration of the Himalayan thrust front. It extends approximately 180 km ENE along strike and is underlain by salt. This is manifested by its very narrow (<1°) cross-sectional taper and great (150 km) width. Integration...
This study presents a rational process with supporting data to establish
appropriate road design controls, criteria, and standards for low volume
recreation and resource development. Much of the information presented can
be used to supplement design data presented in a National road design policy
published by the American Association of...
The western Taylor Park area covers about 65 square
miles on the western flank of the Sawatch Range. It is
underlain chiefly by Precambrian rocks, partially covered
on the east by glacial debris and overlapped on the west
and south by Paleozoic sedimentary rocks.
The Precambrian rocks include a group...
In an exploratory survey of the serviceability of wood in the
marine environment in the Pacific Northwest, pressure-creosoted
piling with tops protected from wetting by the superstructure provided
40 and more years of service and showed little or no indication
of deterioration. The service life of these piling is still...
The response of three hardwoods from Ghana and a hardwood and
three softwoods from the United States to liquid and gas-phase impregnation
was investigated. Impregnation with liquids included a sink-float
test in a water-glycerine solution and pressure treatment with a copper
sulphate solution and creosote under identical treating conditions.
Flow...
Three groups of experiments were performed to determine an effective
procedure for controlling decay in southern pine (Pinus spp.)
laminated timbers. (i) A decaying laminated arch of southern pine was
treated with chloropicrin. Movement of the chemical vapor through the
arch and its effect on the decay and nondecay fungal...
Wood degrading ability and tolerance to wood-preserving chemicals
of several fungi isolated from Douglas-fir utility poles were
investigated by the agar-stick and soil-block methods. Birch (Betula.
sp. ) wood sticks and western hemlock (Tsuga heterophylla) wood blocks
were used.
The soil-block and agar-stick tests provided identical weight
loss rankings of...
Three methods--radial compression strength, color indicators of decay and micro-toughness, an examination of tracheid fracture patterns, were evaluated for detection of early decay and for application to field use. Three-eighth-inch diameter plugs 3/4-inch long, cut from the sapwood and heartwood of a Douglas-fir pole free of decay, were decayed by...