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Series: GSA Special Papers
Published: 12 August 2021
DOI: 10.1130/2018.2536(03)
EISBN: 9780813795362
... on measurements 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...
Journal Article
Published: 19 July 2021
Journal of the Geological Society (2021) jgs2021-018.
... to different habitat structures or palaeoceanographic and water depth differences between these basins. Minima in macrofossil δ 18 O values generally coincide with peaks in macrofossil wood abundance and sea-level lowstands inferred from sequence stratigraphic interpretation of other UK sections...
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Journal Article
Published: 15 April 2021
Journal of the Geological Society (2021) 178 (5): jgs2020-225.
...Neil S. Davies; Christopher M. Berry; John E.A. Marshall; Charles H. Wellman; Franz-Josef Lindemann Abstract The Devonian Period was a crucial interval in the evolution of plants. During its 60 myr duration, it witnessed the successive evolution of roots, wood, trees and forests. In addition, many...
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Journal Article
Journal: Geology
Published: 29 May 2020
Geology (2020) 48 (9): 882–887.
... currents, transport of POC by rivers is well studied ( Galy et al., 2015 ). Riverine POC is a mixture of: (1) young carbon produced by photosynthesis in the biosphere (plant, wood); (2) old biospheric carbon from degraded soil organic matter; and (3) petrogenic carbon, i.e., ancient ( 14 C-free) carbon...
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Journal Article
Published: 01 February 2019
Earthquake Spectra (2019) 35 (1): 159–191.
... buildings LFRS Sample size LFRS Sample size SW a with plywood diaphragm 12 MRF b 43 SW with plywood sheathing over steel joists 8 RCSW 25 SW with metal/concrete diaphragm 6 Hybrid in height c 12 Steel bracing (BR) with concrete diaphragm 4 Steel bracing 3 Wood...
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Journal Article
Published: 01 November 2017
Earthquake Spectra (2017) 33 (4): 1555–1572.
... or more stories or the whole building collapsed. The team visually inspected the extent of the damage and recorded the damage levels on the local house map. They also recorded the use of the structure (house, store, office, storage, etc.) and the structural type (wood, steel, RC, etc...
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Journal Article
Published: 01 November 2017
Earthquake Spectra (2017) 33 (4): 1301–1323.
... considered in this study is obtained from the Ministry of Land Infrastructure and Transportation ( MLIT 2014 ). The building dataset contains 6,791 low-rise structures (one to four stories), consisting of three structural/material types, that is, reinforced concrete (RC), steel, and wood. The number of RC...
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Journal Article
Published: 01 August 2017
Earthquake Spectra (2017) 33 (3): 999–1027.
... of concrete, steel, wood, and masonry building systems ( ASEP 2010 ). In accordance to the amendments of the NSCP, the eras of construction represent three vintages. The eras were bounded by the years 1972 when the first edition of the code was released, and 1992 when the contemporary code was adopted ( UPD...
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Journal Article
Published: 01 August 2017
Earthquake Spectra (2017) 33 (3): 1075–1100.
...-framed structures filled with adobe were already widespread. In Italy, an archaeological excavation campaign in Herculaneum revealed a building during Roman times featuring two levels of wood-framed structure with infill. This type of structure was listed under the name of Craticii or Opus Craticium...
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Journal Article
Published: 01 August 2017
Earthquake Spectra (2017) 33 (3): 1053–1074.
... that the HAZUS curve compared to retrofitted buildings ( Figure 4 ) is for a low-rise reinforced masonry building with wood or metal diaphragms (“RM1L” category). HAZUS does not provide fragilities for retrofitted URM buildings and the HAZUS technical manual ( FEMA 2012 ) recommends this structure category...
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Journal Article
Journal: Geology
Published: 29 June 2017
Geology (2017) 45 (9): 783–786.
.../j.quageo.2016.08.002. Schneider , L. , Smerdon , J.E. , Büntgen , U. , Wilson , R.J.S. , 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...
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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