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Gordon Gulch

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Soil profiles for sample pits in <span class="search-highlight">Gordon</span> <span class="search-highlight">Gulch</span>; figure adapted from  Wyshnyt...
Published: 01 May 2015
Figure 6. Soil profiles for sample pits in Gordon Gulch; figure adapted from Wyshnytzky (2011) to represent lab results from Dethier et al. (2012) and field notes by M.A. Foster. Roman numerals reference soils derived from different parent materials (derived from colluviums or mobile regolith
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(A) <span class="search-highlight">Gordon</span> <span class="search-highlight">Gulch</span> study catchment. Transects A-A′ and B-B′ represent the bes...
Published: 01 May 2015
Figure 4. (A) Gordon Gulch study catchment. Transects A-A′ and B-B′ represent the best-fit downslope transects along cosmogenic radionuclide study pits (white dots). White triangles reference sample locations for 10 Be-derived rates of basin-wide denudation using fluvial sands. (B) One
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Aerial photo showing large vegetation differences in lower <span class="search-highlight">Gordon</span> <span class="search-highlight">Gulch</span>; th...
Published: 01 May 2015
Figure 5. Aerial photo showing large vegetation differences in lower Gordon Gulch; the south-facing slope is sparsely vegetated, largely with ponderosa pine, while the north-facing slope is densely vegetated, dominantly with lodgepole pine.
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IN SITU  10 Be RESULTS FOR SAPROLITE AND MOBILE REGOLITH IN <span class="search-highlight">GORDON</span> <span class="search-highlight">GULCH</span>, B...
Published: 01 May 2015
TABLE 2. IN SITU 10 Be RESULTS FOR SAPROLITE AND MOBILE REGOLITH IN GORDON GULCH, BOULDER CREEK CRITICAL ZONE OBSERVATORY
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In situ  10 Be data ( 10 Be  i  ) from <span class="search-highlight">Gordon</span> <span class="search-highlight">Gulch</span> sites. The saprolite po...
Published: 01 May 2015
Figure 7. In situ 10 Be data ( 10 Be i ) from Gordon Gulch sites. The saprolite portion of each pit is shaded gray. As the entire pit depth is represented in each plot, the y -axis varies from plot to plot. Scale for concentration of 10 Be i is consistent in all plots. Upslope pits
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Four shallow seismic refraction transects across the <span class="search-highlight">Gordon</span> <span class="search-highlight">Gulch</span> catchment...
Published: 01 August 2011
Fig. 8. Four shallow seismic refraction transects across the Gordon Gulch catchment with locations shown in Fig. 4 . North-facing slopes show consistently deeper low velocities (<2500 m s −1 ) and likely describe deeper weathering fronts compared to the profiles on the south-facing slope.
Journal Article
Published: 01 August 2011
Vadose Zone Journal (2011) 10 (3): 915–927.
...Fig. 8. Four shallow seismic refraction transects across the Gordon Gulch catchment with locations shown in Fig. 4 . North-facing slopes show consistently deeper low velocities (<2500 m s −1 ) and likely describe deeper weathering fronts compared to the profiles on the south-facing slope. ...
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Journal Article
Journal: GSA Bulletin
Published: 01 May 2015
GSA Bulletin (2015) 127 (5-6): 862–878.
...Figure 6. Soil profiles for sample pits in Gordon Gulch; figure adapted from Wyshnytzky (2011) to represent lab results from Dethier et al. (2012) and field notes by M.A. Foster. Roman numerals reference soils derived from different parent materials (derived from colluviums or mobile regolith...
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Series: GSA Field Guide
Published: 01 January 2013
DOI: 10.1130/2013.0033(01)
EISBN: 9780813756332
... in drilling runs (data points), core recovery (stepped line), and notes on water during drilling and in the first months following drilling. Stop 3: Gordon Gulch Watershed Figure 12. Left: Fracture pattern in Boulder Creek granodiorite in outcrop, lower Boulder Canyon. Note ~20-m-tall, large...
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Specific discharge (cm d −1 ) at Green Lake 4 (GL4), Como Creek (CC), Gordo...
Published: 01 August 2011
Fig. 2. Specific discharge (cm d −1 ) at Green Lake 4 (GL4), Como Creek (CC), Gordon Gulch (GG), Betasso (BET), Nederland (NED), and Orodell (ORO) for the 2009 calendar year.
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Velocity assignments for geologic materials yield a quasi-3D network of int...
Published: 01 August 2011
Fig. 9. Velocity assignments for geologic materials yield a quasi-3D network of interpreted critical zone architecture. Select shallow seismic refraction lines from the upper Gordon Gulch catchment reveal subsurface structure over 0.5 km 2 to a depth of 20 m.
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Boulder Creek watershed and major streams, Colorado Front Range (USA). LiDA...
Published: 01 May 2015
. The Gordon Gulch research area, within the Boulder Creek Critical Zone Observatory, is outlined in the upper portion of the Boulder Creek watershed.
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Three study catchments lie within the mountainous portion of the Boulder Cr...
Published: 01 August 2011
” persists with some deeply weathered sections ( Dethier and Lazarus, 2006 ). The Betasso catchment resides on the boundary between heightened river incision and the upland surface. The Gordon Gulch catchment lies completely within the low relief surface.
Journal Article
Published: 01 August 2011
Vadose Zone Journal (2011) 10 (3): 900–914.
...Fig. 2. Specific discharge (cm d −1 ) at Green Lake 4 (GL4), Como Creek (CC), Gordon Gulch (GG), Betasso (BET), Nederland (NED), and Orodell (ORO) for the 2009 calendar year. ...
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Journal Article
Published: 01 August 2011
Journal of Sedimentary Research (2011) 81 (8): 562–578.
...) the vertical arrangement of bedsets and their bounding discontinuities at the section locations. No data were used to constrain the detailed internal stratigraphic architectures of parasequences Ab0 and Ab1 in paleolandward locations, between Gordon Creek to Gilson Gulch ( Figs. 1 , 2 ). However...
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Journal Article
Published: 04 December 2017
Journal of Paleontology (2018) 92 (2): 157–169.
... and evolutionary radiation in the late Carboniferous (Doguzhaeva et al., 2010a ). Flower and Gordon ( 1959 ) described the first Carboniferous coleoid genera ( Hematites , Paleoconus , and Bactritimimus ) that were referred to the order Aulacocerida Stolley, 1919 because of the presence of a robust...
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Journal Article
Published: 01 November 2001
Journal of Sedimentary Research (2001) 71 (6): 880–894.
... are typically mudstone-dominated) are shaded. See Figure 5 for explanation of other symbols. The sandstone at the Black Gulch outcrop represents a single point bar and associated channel fill. The conglomerate-sandstone at the Keyhole outcrop consists of two laterally connected stories that represent...
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Journal Article
Journal: GSA Bulletin
Published: 01 May 2013
GSA Bulletin (2013) 125 (5-6): 709–727.
.... 6 ). All three Osburger Gulch Sandstone samples contain abundant Early Cretaceous and Late Juras grains, with fewer Middle and Early Juras grains ( Fig. 5 ). Four Precambrian grains comprise less than 2% of the total Osburger Gulch Sandstone grains analyzed (4 out of 239) and do not overlap...
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Journal Article
Published: 01 December 2018
Journal of Paleontology (2018) 92 (S77): 1–33.
... formations to the Chesterian and part of the Morowan. This gap was further narrowed by the determination of a mid-Morrowan (Bashkirian) age for the lowermost units of the Watahomigi Formation based on brachiopods (Gordon, 1982 ). The sequence in the paleovalley fills is interpreted as representing...
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Journal Article
Journal: AAPG Bulletin
Published: 01 May 1966
AAPG Bulletin (1966) 50 (5): 901–920.
... for their many suggestions. Appreciation goes to William H. Easton who checked and greatly supplemented the fossil determinations. The writer acknowledges the welcome visits of John C. Hazzard, F. Earl Turner, Clarence Allen, and Gordon L. East, not only for their ideas, but also for their companionship...
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