Pike National Forest

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Step-pool sequences in <b>Pike</b> <b>National</b> <b>Forest</b>, Colorado, USA (Academy study r...
Published: 02 April 2019
Figure 1. Step-pool sequences in Pike National Forest, Colorado, USA (Academy study reach; photo taken on 12 December 2014).
Series: DNAG, Centennial Field Guides
Published: 01 January 1987
DOI: 10.1130/0-8137-5402-X.331
EISBN: 9780813754086
... Abstract The site lies within Pike National Forest and doesnot require permission to enter. The only formal requirement is the toll charged at the entrance to the Pikes Peak toll road, which goes all the way to the summit of the peak, elevation 14,110 ft (4,300 m). The hard-bottom dirt road...
... S tratabound massive sulfide deposits of the Vermont copper belt have supplied the largest metal production in the New England region. Also known as the orange County copper district, the copper belt principally comprises the Elizabeth, Ely, and Pike Hill mines, as well as several...
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Series: GSA Field Guide
Published: 01 January 2004
DOI: 10.1130/0-8137-0005-1.151
EISBN: 9780813756059
... to a site near Big Stump, where it was used as a lodge. This site was later operated by the Singer family as the Colorado Petrified Forest from 1927 until the national monument was established. Another private operation, the Pike Petrified Forest, was located adjacent to the Singer’s venture. Situated...
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Journal Article
Published: 01 November 2010
Quarterly Journal of Engineering Geology and Hydrogeology (2010) 43 (4): 417-428.
... that peaked over the next 12 h. Debris flows and debris slides blocked roads, buried campgrounds, wiped out bridges, and scoured and filled streams. In addition, high wind speeds blew down sections of forest, stripped trees of branches and severely disturbed transmission corridors. Total costs of the storm...
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Journal Article
Published: 01 November 2009
Environmental and Engineering Geoscience (2009) 15 (4): 217-234.
... caused by progressive sediment bulking of runoff with material eroded from headwater slopes; and landslide-triggered debris flows caused by a landslide that enters a steep channel. In the burned areas studied, the first mechanism is the most common, whereas in unburned forested landscapes in the region...
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Journal Article
Published: 01 June 2002
Bulletin of the Seismological Society of America (2002) 92 (5): 1806-1840.
... and times are expressed in GMT. Time calibrations were obtained from the National Bureau of Standards WWV radio stations ( National Bureau of Standards, 1969 ). When available, times are given to the nearest 0.01 sec (uncorrected for WWV propagation), even though 0.1-sec accuracy may be adequate for most...
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Journal Article
Published: 01 January 2012
Rocky Mountain Geology (2012) 47 (1): 37-53.
... discovery initiated this project come from the Picket Wire Canyonlands, a 23,000-acre unit within the Comanche National Grassland (administered by the United States Forest Service [USFS]) in southeastern Colorado (Fig. 1 ). As shown by Schumacher (2002) , the Picket Wire Canyonlands are critical...
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Journal Article
Published: 01 May 2019
Rocky Mountain Geology (2019) 54 (1): 33-46.
... the wood from human predation over the years. Figure 1. Map showing location of the Cherokee Ranch fossil forests. Figure from Mustoe and Viney, 2017 . Figure 2. One of the Cherokee Ranch logs. Note the iron-oxide-cemented sandstone carapace on the left side of the log...
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Journal Article
Published: 01 January 2002
Journal of Paleontology (2002) 76 (1): 123-133.
...FOREST J. GAHN; THOMAS W. KAMMER Abstract All species of Barycrinus from the early Osagean Burlington Limestone of the United States midcontinent are reviewed. Burlington Barycrinus species include: B. rhombiferus ( Owen and Shumard, 1852 ); B. magister ( Hall, 1858 ); B. spurius ( Hall, 1858 ); B...
Series: GSA Special Papers
Published: 27 November 2018
DOI: 10.1130/2018.2535(21)
EISBN: 9780813795355
... River Expedition of 1806, which investigated the southwestern part of the continent, and Zebulon Pike’s 1806–1807 expedition to examine the northern parts of Spain’s territorial claims in what is now Colorado and New Mexico. During the 1840s, the nation undertook another major growth spurt—annexing...
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Journal Article
Journal: Palynology
Published: 01 December 2010
Palynology (2010) 34 (2): 261-286.
... a warm-temperate flora along a floodplain with elements reflecting the vegetation of the adjacent upland forests. * Corresponding author. Email: dmj@flmnh.ufl.edu © 2010 by AASP Foundation 2010 Miocene palynofloras are poorly known in eastern North America. In the southeast United States...
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... Figure 1. Shaded relief map showing the fieldtrip route and field stops (Map modified from Graham and Pike, 1997 ). SFDB—Sir Francis Drake Blvd. Inset map: Location of study area in California; SAF—San Andreas fault. Abstract The main destination of this field trip...
Journal Article
Published: 01 June 2016
Canadian Journal of Earth Sciences (2016) 53 (6): 630-643.
... ) was deposited nonconformably on Precambrian Pikes Peak Granite ( Wobus and Epis 1978 ; Evanoff et al. 2001 ; Meyer and Smith 2008 ), which contributed a granitic component to the overlying basal sediments. Of the six units, the lower, middle, and upper shale units are predominantly lacustrine in origin...
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Published: 01 January 2009
DOI: 10.1130/2009.monitoring(11)
EISBN: 9780813759432
... = <few hours; medium= <full day; high =>full day. Figure 2. Physical measuring of the length of a rockslide in the mountains of Shenandoah National Park, Virginia. Figure 3. Measuring thickness of a recent debris-flow deposit along a stream channel in northern coastal...
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Journal Article
Journal: GSA Bulletin
Published: 01 January 2012
GSA Bulletin (2012) 124 (1-2): 3-23.
...Jaelyn J. Eberle; David R. Greenwood Abstract Early–middle Eocene (ca. 53–38 Ma) sediments of the Eureka Sound Group in Canada’s Arctic Archipelago preserve evidence of lush mixed conifer-broadleaf rain forests, inhabited at times by alligators, turtles, and diverse mammals, including primates...
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Journal Article
Journal: Palynology
Published: 01 January 2006
Palynology (2006) 30 (1): 121-132.
... significant decline, with general forest opening and the grassland/pasture indicator Plantago lanceolata . A third, less significant, decline was again accompanied by cereal-type pollen. Tree pollen frequencies subsequently recovered, with cereal-type pollen remaining well represented. The fungal data...
Journal Article
Journal: Geology
Published: 01 January 2007
Geology (2007) 35 (1): 41-44.
... of selected pollen types representing rainforest and open forest with calculated summer insolation. Bandwidth (BW) at 1/3 lags shown. Insolation was calculated for 38°S 1 January, 1550–1850 ka. Insolation changes account for increases in (A) rainforest angiosperms, (B) Podocarpaceae, (C) Eucalyptus, and (D...
Journal Article
Published: 01 December 2015
Environmental Geosciences (2015) 22 (4): 139-148.
... or microseismic measurements, groundwater monitoring was not included. The site is located in Clearfield County, PA, near the intersection of Caledonia Pike and Merrill Road in Moshannon State Forest ( Figure 1 ). It consists of a generally level plateau in second-growth hardwood forest with a dense...
Journal Article
Journal: PALAIOS
Published: 01 February 2013
PALAIOS (2013) 28 (2): 129-135.
... been carried out for many taxonomic groups including: small mammals ( Terry, 2010a , 2010b ), diatoms ( Hassan et al., 2007 ; Pike et al., 2008 ), plants and pollen ( Jackson and Kearsley, 1998 ; Simms and Cassara, 2009 ), mollusks ( Zuschin et al., 2000 ; Lockwood and Chastant, 2006 ; Ferguson...
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