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Journal Article
Journal: Geology
Published: 29 May 2020
Geology (2020) 48 (9): 882–887.
..., 2012 ) posit that sandy fractions are POC free. Yet a recent study ( Lee et al., 2019 ) has found that abundant wood has been buried in sands in the Bengal Fan (Bay of Bengal, Indian Ocean) for the last 19 m.y. Other studies have described organic-rich layers in sandy deep-sea turbidites ( Saller et al...
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Series: GSA Special Papers
Published: 31 December 2019
DOI: 10.1130/2018.2536(03)
EISBN: 9780813795362
... of bulk density, organic matter content, C:N ratio, biogenic silica abundance, and grain-size distribution. Depth-age models were developed using optically stimulated luminescence (OSL) dating, along with accelerator mass spectrometry (AMS) 14 C dating of terrestrial macrofossils (wood and conifer...
Journal Article
Journal: Geology
Published: 29 June 2017
Geology (2017) 45 (9): 783–786.
.... , Myglan , V.S. , Kirdyanov , A.V. , and Esper , J. , 2015 , Revising midlatitude summer temperatures back to A.D. 600 based on a wood density network : Geophysical Research Letters , v. 42 , p. 4556 – 4562 , doi:10.1002/2015GL063956. Sgattoni , G. , Jeddi , Z. , Gudmundsson...
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Journal Article
Journal: Geology
Published: 01 June 2017
Geology (2017) 45 (6): 499–502.
...S.L Rathburn; G.L. Bennett; E.E. Wohl; C. Briles; B. McElroy; N. Sutfin Abstract Identifying and quantifying the dominant processes of erosion and tracking the fate of sediment, wood, and carbon eroded during floods is important for understanding channel response to floods, downstream sediment...
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Journal Article
Journal: Geology
Published: 01 May 2017
Geology (2017) 45 (5): 447–450.
... intraring δ 13 C analyses on fossil wood collected from the late Miocene Khapchansky sediments of northeastern Siberia (∼69°N). From these data we quantified the ratio of summer to winter precipitation (P s /P w ) and compared it to current values for the region determined from modern wood samples...
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Journal Article
Journal: Geosphere
Published: 01 October 2016
Geosphere (2016) 12 (5): 1594–1605.
... utility of carbon-isotope stratigraphies. Isotopic analysis of fossil wood fragments (from the Rurikfjellet, Helvetiafjellet, and Carolinefjellet formations, Festningen, Spitsbergen) record a distinctive pattern including a negative isotope excursion preceding a positive event, correlatable...
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Journal Article
Published: 02 September 2016
Canadian Journal of Earth Sciences (2017) 54 (1): 76–87.
... contiguous wood mats deposited on paleosols. Dendroglaciological and radiocarbon dating of these wood remains show that Frank Mackie Glacier expanded into standing forests at 3710–3300, 2700–2200, 1700–1290, 900–500, and 250–100 cal. years BP. These advances coincide closely in time with the previously...
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Journal Article
Published: 01 March 2016
Vadose Zone Journal (2016) 15 (3): vzj2015.04.0061.
... an electrical signal that varies depending on the apparent dielectric permittivity of the sensing volume of porous materials. Because wood is also a porous material, dielectric moisture sensors have the potential for measurement of volumetric water content in wood. If the water content of the trunk (xylem...
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Journal Article
Journal: Palynology
Published: 01 November 2015
Palynology (2015) 39 (3): 410–433.
... scheme to apply when counting these fragments can be confusing, and application of these schemes can yield inconclusive results, especially when sedimentation and energy are in constant flux. A scheme of five categories, including brown wood (palynomaceral 1–2), leaf cuticle (palynomaceral 3), black...
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Journal Article
Published: 01 January 2014
Journal of Sedimentary Research (2014) 84 (1): 19–25.
... horizons is typically smaller and less well preserved than in most of the non-cross-bedded wood accumulations, and appears more water-worn and often blackened. The blackened color appears to be a result of partial decomposition; we saw no evidence of charcoal or burning in any of the lenses. The FWD...
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Journal Article
Published: 05 December 2012
Canadian Journal of Earth Sciences (2013) 50 (4): 483–493.
... and buried logs, laying horizontally at the base of the pit, and (B) detail of the overlying and burying sediments — interbedded sand and muck — above buried wood at the water line. Tape increments in centimetres. Methods used in fossil analysis followed established procedures ( Faegri and Iverson...
Journal Article
Published: 12 April 2012
Canadian Journal of Earth Sciences (2012) 49 (5): 671–680.
..., New York, USA. The fossils included substantial wood fragments, associated plant remains, and pollen, which indicate a forest of white spruce ( Picea glauca ), balsam fir ( Abies balsamea ), and tamarack ( Larix laricina ). The presence of white, rather than black ( P. mariana ) or red ( P. rubens...
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Journal Article
Published: 20 July 2011
Canadian Journal of Earth Sciences (2011) 48 (7): 1185–1198.
... episodic accounts of major events, such as the grounding of the fully loaded log barge “Forest Prince” on Wickaninnish Beach in 1968. The barge was eventually removed by tugboat and the amount of wood that remained on the beach, although never recorded, was appreciable (Barry Campbell, Personal...
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Journal Article
Journal: Geology
Published: 01 June 2011
Geology (2011) 39 (6): 587–590.
...Ellen Wohl Abstract The geomorphic complexity of streams influences the residence time of carbon by creating storage sites for organic matter. Instream wood increases complexity, particularly where logjams initiate multithread channels, as documented previously for lowland alluvial channels...
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Journal Article
Journal: GSA Bulletin
Published: 01 May 2011
GSA Bulletin (2011) 123 (5-6): 958–978.
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Journal Article
Journal: Lithosphere
Publisher: GSW
Published: 01 June 2010
Lithosphere (2010) 2 (3): 139–152.
... and is characterized by a variegated network of northward-flowing underfit braided channels that merge to form Bruce Stream ( Fig. 4 ). A tree stump is exposed in the channel of Bruce Stream at its lower end where the I-2c surface has been superseded by I-2b drainage. A wood sample from the outside of stump B3 yielded...
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Journal Article
Journal: Geology
Published: 01 June 2010
Geology (2010) 38 (6): 523–526.
... radiocarbon dates on terrestrial wood and charcoal fragments. Our results indicate that in the absence of large human populations and extensive farming activities, Petén forests recovered under humid climate conditions within a span of 80–260 yr. Soil stabilization postdates pollen evidence of forest regrowth...
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Journal Article
Published: 01 December 2009
Journal of the Geological Society (2009) 166 (6): 989–997.
... for ( a ) 1000 μm, for ( b ) 100 μm. Fig. 2. ( a ) Hand specimen of the amber-bearing unit from the Fairlight Clay facies of the Ashdown Formation at Hastings, showing an amber nodule, about 6 mm across, embedded in and surrounded by charcoalified wood fragments. ( b ) Stereopair image of scanning...
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Journal Article
Journal: GSA Bulletin
Published: 01 January 2009
GSA Bulletin (2009) 121 (1-2): 294–320.
... remains, pollen, tree-ring characteristics, and δ 13 C values of spruce wood, demonstrate that the boreal forest represented by the Dawson Cut Forest Bed was similar to the modern boreal forest of central Alaska. Warming conditions during the early part of the Dawson Cut Interglaciation initiated thawing...
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Journal Article
Journal: PALAIOS
Published: 01 November 2008
PALAIOS (2008) 23 (11): 721–723.
... relative to their N demands ( Högberg, 1997 ; Schimel and Bennett, 2004 ). Robust interpretation of natural abundance δ 15 N in terrestrial ecosystems, however, requires large-scale modern calibrations to account for a range of environmental conditions that likely occurred during the Holocene. Wood...
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