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Eel Creek Formation

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Tranquillityite in dolerite sill intruding the <b>Eel</b> <b>Creek</b> <b>Formation</b>, northea...
in > Geology
Published: 01 January 2012
Figure 1. Tranquillityite in dolerite sill intruding the Eel Creek Formation, northeastern Pilbara Craton. A: Plane-polarized light (PPL) image of dolerite showing a patch of quartz-K-feldspar intergrowth containing tranquillityite surrounded by plagioclase (plg) and pyroxene (px). B: Close-up
Journal Article
Journal: Geology
Published: 01 January 2012
Geology (2012) 40 (1): 83-86.
...Figure 1. Tranquillityite in dolerite sill intruding the Eel Creek Formation, northeastern Pilbara Craton. A: Plane-polarized light (PPL) image of dolerite showing a patch of quartz-K-feldspar intergrowth containing tranquillityite surrounded by plagioclase (plg) and pyroxene (px). B: Close-up...
FIGURES
Journal Article
Journal: Geosphere
Published: 01 April 2012
Geosphere (2012) 8 (2): 403-416.
...Melissa A. Foster; Harvey M. Kelsey Abstract The South Fork Eel River, northern California (United States), displays a prominent knickzone in its longitudinal profile that may represent a perturbation that is propagating upstream. We investigated two tributary basins (Standley and Bear Pen Creeks...
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Journal Article
Journal: GSA Bulletin
Published: 01 March 2008
GSA Bulletin (2008) 120 (3-4): 463-475.
..., consistent with erosion of the distributary channel and formation of cyclic steps by turbidity currents. The Eel River basin has been the subject of recent work to connect terrestrial sediment sources to the resulting depositional record ( Nittrouer and Kravitz, 1996 ; Nittrouer, 1999 , Nittrouer et al...
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Journal Article
Journal: GSA Bulletin
Published: 01 July 2011
GSA Bulletin (2011) 123 (7-8): 1560-1576.
... displacements are shown in black. Inset shows displacement at the midsection of the flow, where it crosses a structural barrier running obliquely across the transport zone. Note the large toe advancing from the northeast. Eel River runs south to north along the toe of the Boulder Creek earthflow...
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Journal Article
Journal: Geology
Published: 01 September 2009
Geology (2009) 37 (9): 803-806.
... 27 0.9 m rebar stakes on the slide, and recorded their positions using a total station for three successive summers (2006–2008). We focused on a 1.5-km-long active earthflow (0.2 km 2 area) entering Kekawaka Creek, an 85 km 2 tributary of the Eel River ( Fig. 1 ). This active earthflow has...
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Pb ISOTOPE DATA FOR TRANQUILLITYITE IN DOLERITE INTRUDING THE <b>EEL</b> <b>CREEK</b> FOR...
in > Geology
Published: 01 January 2012
TABLE 2. Pb ISOTOPE DATA FOR TRANQUILLITYITE IN DOLERITE INTRUDING THE EEL CREEK FORMATION, WESTERN AUSTRALIA
Journal Article
Published: 01 February 2006
Clays and Clay Minerals (2006) 54 (1): 101-115.
... ), then a significant amount of the ferric Fe must be assigned to these layers and the average serpentine layer will thus contain relatively more ferrous Fe and be closer to berthierine. Clay Pellets EELS Mössbauer Spectroscopy Serpentine-nontronite-vermiculite Verdinization Texas Weches Formation...
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Journal Article
Journal: Lithosphere
Published: 01 March 2018
Lithosphere (2018) 10 (2): 301-326.
... transects along Thomes Creek cover the transition from lawsonite-albite facies metagreywackes to the blueschist facies South Fork Mountain Schist. The western section shows thick-bedded metagreywacke intercalated with broken formation, deformed by NW-vergent folds and associated thrusts and pressure...
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Journal Article
Journal: GSA Bulletin
Published: 01 September 2006
GSA Bulletin (2006) 118 (9-10): 1232-1246.
... of the Russian River canyon between Healdsburg and the coast, and formation and uplift of the Fort Bragg marine terraces, has occurred in the last 2 m.y. The onset of fluvial deposition at the mouth of the northern Eel River outlet, recorded by the emergence of the Humboldt marine basin at ca. 2 Ma ( Ogle...
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Journal Article
Journal: PALAIOS
Published: 01 January 2010
PALAIOS (2010) 25 (5): 299-317.
...ROLAND A. GANGLOFF; ANTHONY R. FIORILLO Abstract The late Campanian–Maastrichtian Liscomb Bonebed is the richest source of dinosaur remains thus far documented in the polar regions. This bed is formally defined herein and assigned to the upper part of the Prince Creek Formation; the bonebed...
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Journal Article
Journal: Geology
Published: 01 May 2009
Geology (2009) 37 (5): 467-470.
... of mudstone, with localized outcrops of sandstone ( Jayco et al., 1989 ). Seidl and Dietrich (1992) mapped a series of strath terraces along Elder Creek and the South Fork Eel ( Fig. 1 ) located within the Nature Conservancy's Angelo Coast Range Reserve. We investigate these terraces here...
FIGURES
Journal Article
Journal: GSA Bulletin
Published: 01 September 2007
GSA Bulletin (2007) 119 (9-10): 1120-1134.
... floods and land-use change in the drainage basin during historical time. Piston cores collected on the shelf (50−150 m water depths) off the Eel and Klamath Rivers were analyzed to identify lithologies indicative of depositional processes over the past 5 k.y., and dated using 137 Cs and 14 C methods...
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Journal Article
Published: 01 April 2008
Bulletin of the Seismological Society of America (2008) 98 (2): 918-930.
... cracked for distances of several hundred feet on either side (Fig.  7 ). At Centerville Beach near the mouth of the Eel River, the Ferndale Enterprise reported a half-mile-wide landslide into the Pacific near Oil Creek, obstructing the view between the Cape Mendocino and Table Bluff lighthouses. All...
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Journal Article
Published: 01 January 2007
American Mineralogist (2007) 92 (1): 72-79.
...Diana B. Loomer; Tom A. Al; Louise Weaver; Steven Cogswell Abstract Electron energy loss spectroscopy (EELS) was used with scanning transmission electron microscopy (STEM) to quantify the average Mn valence in natural minerals at the nanometer scale. A method was developed to calibrate the energy...
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Series: GSA Field Guide
Published: 01 January 2016
DOI: 10.1130/2016.0041(07)
EISBN: 9780813756417
... in the Wallowa terrane are separated into formally named units. The Permian and Triassic Seven Devils Group encompasses the Middle and Late(?) Permian Windy Ridge and Hunsaker Creek Formations and the Middle and Late Triassic Wild Sheep Creek and Doyle Creek Formations. Some Permian and Triassic plutonic rocks...
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Journal Article
Published: 01 November 2012
Proceedings of the Yorkshire Geological Society (2012) 59 (2): 145-159.
... derivation of the sediment. The nature of the infill suggests rapid sedimentation that choked the creek system, perhaps in as little as a few years. At least three successive generations of roddons are present in the Fenland, suggesting at least three distinct episodes of tidal creek formation. The Must Farm...
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Journal Article
Journal: Geosphere
Published: 01 April 2012
Geosphere (2012) 8 (2): 342-373.
... is offset 14.8 ± 6.0 km across the combined northern (Healdsburg fault segment) and southern Rodgers Creek fault zones, which are inferred to have been more continuous prior to formation of the Santa Rosa pull-apart basin. The displacement of these Glen Ellen Formation gravels yields a slip rate of 5.3...
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Journal Article
Published: 01 May 2006
American Mineralogist (2006) 91 (5-6): 784-789.
... energy loss spectroscopy (EELS) to address the controversy regarding its state of structural disorder. We found that the carbonaceous material is structurally amorphous, with no evidence of graphitization, and contains aromatic domains, most likely as polyaromatic ring structures, similar to preserved...
FIGURES
Journal Article
Journal: Geology
Published: 01 December 2013
Geology (2013) 41 (12): 1215-1218.
.... , 2012 , Knickpoint and knickzone formation and propagation, South Fork Eel River, northern California : Geosphere , v. 8 , p. 403 – 416 , doi:10.1130/GES00700.1 . Fuller T.K. Perg L.A. Willenbring J.K. Lepper K. , 2009 , Field evidence for climate-driven changes in sediment...
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