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charcoal

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Journal Article
Journal: Lithosphere
Publisher: GSW
Published: 10 February 2021
Lithosphere (2021) 2021 (1): 7866379.
... 606 ± 34 Organic sediment BETA TC1 Beta-482199 FMP-C-6 720 ± 30 668 ± 26 Organic sediment Beta-482200 FMP-C-9 680 ± 30 629 ± 41 Organic sediment Beta-482201 FMP-C-12 1750 ± 30 1658 ± 43 Charcoal Beta-482202 FMP-C-14...
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Journal Article
Journal: Geology
Published: 29 May 2020
Geology (2020) 48 (9): 867–871.
... carbon, and gravel-sized charcoal particles are common on the outwash plain in front of the crater. The organic matter is depleted in the thermally sensitive, labile bio-macromolecule proto-hydrocarbons. Pebble-sized lumps of lignite collected close to the sand sample consist largely of fragments...
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Journal Article
Published: 30 March 2020
Canadian Journal of Earth Sciences (2020) 57 (10): 1238–1253.
... are, as of yet, unresolved. New radiocarbon dating of wood charcoal from immediately beneath vent-proximal tephra deposits and complementary age information suggest an eruption in 1675–1778 CE (95.4% probability) was responsible for the formation of the tephra cone. New paleomagnetic and geochemical data from...
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Journal Article
Journal: PALAIOS
Published: 13 January 2020
PALAIOS (2020) 35 (1): 22–36.
... mechanisms are conducive to their accumulation. Throughout the coal seams the conversion of plant material into charcoal (fusain) and its accumulation in a subaqueous setting provides one means of near-perfect preservation. A second and more uncommon example occurs in the form of a 20 cm thick leaf-litter...
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Journal Article
Journal: Geology
Published: 03 January 2020
Geology (2020) 48 (3): 288–292.
... sediments also record increased abundance of fossil charcoal coincident with the onset of a negative carbon isotope excursion and the loss of tropical rainforest vegetation, both of which occurred immediately before the peak of Hg concentrations. The organic carbon isotope data show an ∼5‰–6‰ negative...
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Series: GSA Special Papers
Published: 31 December 2019
DOI: 10.1130/2018.2536(02)
EISBN: 9780813795362
... ABSTRACT We extend a published 9000 yr fire history record from Little Lake, in the Oregon Coast Range, to 35,000 yr and compare it with the established pollen record from the site. The fire history is based on a high-resolution analysis of charcoal preserved in lake sediments, providing a fire...
Series: GSA Special Papers
Published: 31 December 2019
DOI: 10.1130/2018.2536(03)
EISBN: 9780813795362
... needles), charcoal, and pollen concentrates (for deep sediment in one lake). Collectively, the three lakes record a series of discrete intervals spanning an unusually long stretch of time. These include the local Last Glacial Maximum (26.0–18.5 cal ka), local deglaciation (18.5–13.8 cal ka), the onset...
Series: GSA Special Papers
Published: 31 December 2019
DOI: 10.1130/2018.2536(13)
EISBN: 9780813795362
... ABSTRACT Continuous sediment, pollen, and charcoal records were developed from an 8.46-m-long sediment core taken from Hermit Lake in the northern Sangre de Cristo mountain range of Colorado. Presently, vegetation around the lake is upper subalpine forest, consisting of Picea engelmannii...
Journal Article
Published: 09 December 2019
Scottish Journal of Geology (2020) 56 (1): 30–46.
... and the sensitivity of palaeoenvironmental proxies to abrupt change. We present a high-resolution palynological and charcoal study of Quoyloo Meadow, Orkney and use the Principal Curve statistical method to assist in revealing biostratigraphic change. The LGIT vegetation succession on Orkney is presented as open...
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Journal Article
Journal: Palynology
Published: 03 July 2019
Palynology (2019) 43 (3): 517–522.
... to plot pollen and microscopic charcoal by age for the entirety of the record, and more accurately represents site history. Plotting pollen and charcoal assemblages by age using our new chronology highlights the long intervals of time that are missing from the postglacial record at Anderson Pond, while...
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Journal Article
Journal: GSA Bulletin
Published: 13 June 2019
GSA Bulletin (2020) 132 (1-2): 321–333.
... time scales, the likelihood and behavior of fire are also controlled by other factors such as climate, implying that CO 2 -driven climate changes should also be observable in the fossil charcoal record. We tested this hypothesis and present a high-resolution study of fire history through the use...
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Journal Article
Journal: GSA Bulletin
Published: 09 April 2019
GSA Bulletin (2019) 131 (11-12): 1783–1793.
... identified on the basis of one or more sedimentologic properties such as in situ charcoalized wood, gas-segregation pipes, welding, and reddish hematite oxidation in the upper parts of flow units (e.g., Cronin et al., 2013 ). Where clast material is present, pumice concentrated at the top of a flow unit...
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Journal Article
Journal: Geology
Published: 26 February 2019
Geology (2019) 47 (4): 303–307.
... records have been obtained worldwide. Here, two independent micro-charcoal–based fire records from the northern Tibetan Plateau were analyzed; both show similar trends in micro-charcoal concentrations through time, with low abundances in the warmer Middle Miocene Climate Optimum (18–14 Ma) followed...
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Journal Article
Published: 05 June 2018
Journal of Sedimentary Research (2018) 88 (6): 696–716.
...Emese M. Bordy; Devon A. Bowen; John Moore; Mark H. Garnett; Harilaos Tsikos Abstract Wildfires and flooding events are common and are forceful intrinsic controls over landscape evolution, biodiversity, and preserved sediment architecture in dryland environments. Charcoal-bearing Holocene flood...
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Journal Article
Journal: Geology
Published: 15 February 2018
Geology (2018) 46 (4): 363–366.
...://www.neotomadb.org/ ). To determine whether the timing of changes observed in Lake Vera is similar to those found on the mid-latitude eastern Pacific rim, we compared the centennial-scale trends in our multiproxy data set with pollen and charcoal trends interpreted as centennial-scale SAM-like trends from Lago...
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Journal Article
Journal: Geology
Published: 27 October 2017
Geology (2017) 45 (12): 1083–1086.
... conditions ( Bowman, 2000 ) and is favored in western Tasmania by increased fire activity under a relatively dry and variable hydroclimatic regime ( Beck et al., 2017 ; Fletcher et al., 2014 ). The composites of pollen and charcoal data reveal substantial millennial-scale variations that we...
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Journal Article
Journal: PALAIOS
Published: 19 October 2017
PALAIOS (2017) 32 (10): 658–671.
...VERA A. KORASIDIS; MALCOLM W. WALLACE; BEN JANSEN Abstract: Peats are commonly used in paleoenvironmental and paleoclimatic studies but detailed sedimentological and facies models for peatlands are poorly developed relative to other sedimentary settings. A comparison of the palynology and charcoal...
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Journal Article
Journal: Geology
Published: 11 October 2017
Geology (2017) 45 (12): 1119–1122.
..., or long-term canopy seed storage, is a fire-adaptive strategy common among plants living in fire-prone areas today, but evidence of this strategy has been lacking from the fossil record. Deposits of abundant fossil charcoal from sedimentary successions of the Chatham Islands, New Zealand, record wildfires...
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Journal Article
Journal: Palynology
Published: 02 October 2017
Palynology (2017) 41 (4): 498–503.
... with organic matter, and in humic-acid rich samples become contaminated and discoloured. This paper presents the authors' methods for recycling LST® and removing contamination through a combination of filtration through activated charcoal and 0.45 μm nylon membranes. Filtration through Celite® was found...
Journal Article
Journal: Geology
Published: 01 August 2017
Geology (2017) 45 (8): 727–730.
.... These observations suggest that charred flowers are not equally likely to be represented in Cretaceous charcoal assemblages, and some species may be missing from the fossil record entirely. This may in turn alter our understanding of early angiosperm evolution and the fossil record of fire. We analyzed entire...
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