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Journal Article
Published: 16 April 2020
Geochemistry: Exploration, Environment, Analysis (2020) 20 (2): 199–204.
...T. Kurt Kyser; Matthew I. Leybourne; Daniel Layton-Matthews Abstract Among the emerging techniques to detect the real footprint of buried ore deposits is isotope tracing. Novel and automated preparation systems such as continuous flow isotope ratio mass spectrometry, off-axis integrated cavity...
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Journal Article
Published: 01 April 2020
Journal of Foraminiferal Research (2020) 50 (2): 195–203.
.... e19252 . Fisher, C. , 2003 , Planktic foraminiferal porosity: A water mass proxy for latest Cenomanian paleoceanography, Greenhorn Sea, Western Interior USA and Canada : Cretaceous Research , v. 24 , p. 633 – 651...
Journal Article
Journal: Paleobiology
Published: 12 September 2019
Paleobiology (2019) 45 (4): 598–611.
... characters describing the functional morphology of the dentition and 1 character describing body mass. To this data set, we added one new character, the number of upper molars with grinding surfaces (described later), and coded seven additional taxa: the late Neogene South American procyonids Cyonasua...
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Journal Article
Journal: Paleobiology
Published: 01 May 2019
Paleobiology (2019) 45 (2): 363–377.
... measurements of 69 anatomical features of the shells of 108 live tortoises indicate that the regression between straight carapace length and weight is most significant, with a maximum r 2 > 0.99. This regression is useful for tortoises that weigh between 1.8 and 339 kg. This mass estimate, coupled...
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Journal Article
Journal: PALAIOS
Published: 29 November 2018
PALAIOS (2018) 33 (11): 514–523.
..., over a period of 5 My (from MP24 to MP27), only two occurrences (Rigal-Jouet and Saint-Martin de Casselvi, MP25) have been reported. Based on body mass and the general Hyaenodon body plan, we confidently identify H. leptorhynchus as a cursorial hypercarnivorous predator, hunting prey such as small...
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Journal Article
Journal: Geophysics
Published: 29 November 2017
Geophysics (2018) 83 (1): G1–G13.
...Zhengyong Ren; Yiyuan Zhong; Chaojian Chen; Jingtian Tang; Kejia Pan ABSTRACT A new singularity-free analytical formula has been developed for the gravity field of arbitrary 3D polyhedral mass bodies with horizontally and vertically varying density contrast using third-order polynomial functions...
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Journal Article
Journal: PALAIOS
Published: 10 October 2017
PALAIOS (2017) 32 (10): 639–646.
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Journal Article
Published: 24 August 2017
Journal of Paleontology (2017) 91 (6): 1272–1295.
... ontogenetic variation in size and morphology. The body mass range of A . rogeri (1.4–2.5 kg) is comparable to those of notopithecids and some small hegetotheriids. The phylogenetic analysis shows A . rogeri is not directly related to any family within Notoungulata, appearing into a polytomy, as a basal taxon...
Journal Article
Journal: Paleobiology
Published: 30 June 2017
Paleobiology (2017) 43 (4): 693–699.
...Nicolás E. Campione Abstract Despite more than a century of interest, body-mass estimation in the fossil record remains contentious, particularly when estimating the body mass of taxa outside the size scope of living animals. One estimation approach uses humeral and femoral (stylopodial...
Journal Article
Journal: Geophysics
Published: 05 May 2017
Geophysics (2017) 82 (4): G57–G69.
...Fillipe C. L. Siqueira; Vanderlei C. Oliveira Jr.; Valéria C. F. Barbosa ABSTRACT We have developed a new iterative scheme for processing gravity data using a fast equivalent-layer technique. This scheme estimates a 2D mass distribution on a fictitious layer located below the observation surface...
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Journal Article
Published: 01 January 2017
Reviews in Mineralogy and Geochemistry (2017) 82 (1): 27–63.
... of the theory of mass-dependent stable isotope fractionation dates back to the mid-twentieth century, when Bigeleisen and Mayer (1947) and Urey (1947) proposed a formalism that takes advantage of the Teller–Redlich product rule ( Redlich 1935 ) to simplify the estimation of equilibrium isotope...
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Journal Article
Published: 01 January 2017
Reviews in Mineralogy and Geochemistry (2017) 82 (1): 65–83.
..., as well. Since the advent of the multiple collector inductively coupled plasma-source mass spectrometer (MC–ICP–MS), natural variations of stable isotope ratios have been found for almost any polyisotopic element measured. Although it has been known that as temperature and mass increase, isotope...
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Journal Article
Published: 01 January 2017
Reviews in Mineralogy and Geochemistry (2017) 82 (1): 85–125.
... of chemical reactions and rates of geological processes. In a general sense, the fractionation of stable isotopes between any two phases, or between any two compounds within a phase, can be ascribed to some combination of the mass dependence of thermodynamic (equilibrium) partition coefficients, the mass...
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Journal Article
Journal: PALAIOS
Published: 01 December 2016
PALAIOS (2016) 31 (12): 607–615.
... using a tropical molluscan assemblage from the One Tree Reef lagoon (southern Great Barrier Reef, Australia). Shell mass, shape, thickness, and predation frequency were measured in five bivalve species (n = 804) constituting 80% of the predators' diet. Multiple regression determined that shell mass...
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Journal Article
Journal: Elements
Published: 01 June 2016
Elements (2016) 12 (3): 191–196.
... particles reach the Earth decreases with increasing particle size and, by extension, particle mass ( F ig . 1 ). Quantitatively, the size distribution of cosmic dust particles is described by Poisson statistics. This allows us to estimate the number of cosmic dust particles of any given size range...
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Journal Article
Journal: Paleobiology
Published: 03 May 2016
Paleobiology (2016) 42 (4): 643–658.
.... It also predicts that the strength of these gradients should vary with time, becoming weaker during warmer periods and stronger during colder conditions. We tested these predictions by reconstructing body-mass trends within canid and equid genera at different intervals of the Oligo-Miocene along the West...
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Journal Article
Journal: Paleobiology
Published: 18 March 2016
Paleobiology (2016) 42 (4): 659–669.
...Silvia Pineda-Munoz; Alistair R. Evans; John Alroy Abstract Diet and body mass are highly important factors in mammalian ecology, and they have also proven to be powerful paleoecological indicators. Our previous research has proposed a new classification scheme for mammals with more dietary...
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Journal Article
Published: 01 March 2016
Vadose Zone Journal (2016) 15 (3): vzj2015.07.0100.
..., with a wide range of volatilities and solubilities. A Darcy-scale, three-dimensional, multiphase and multicomponent approach simulated the effects of the release depth and duration (20–500 d) on the distribution, partitioning, and fate of gasoline components, highlighting major changes in composition and mass...
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Series: Geological Society, London, Special Publications, Geological Society, London, Special Publications
Published: 01 January 2016
DOI: 10.1144/SP426.24
EISBN: 9781862399587
.... It is based on the fundamental equations of fluid dynamics: the continuity equation, which represents the conservation of mass (for the mathematical notation, see Table A1 in Appendix A): (1) the Navier–Stokes equation that models conservation of momentum: (2) and either the incompressibility...
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Journal Article
Published: 01 November 2015
Vadose Zone Journal (2015) 14 (11): vzj2014.07.0102.
...Craig Rasmussen; Jon D. Pelletier; Peter A. Troch; Tyson L. Swetnam; Jon Chorover Abstract Critical zone evolution, structure, and function are driven by energy and mass fluxes into and through the terrestrial subsurface. We have developed an approach to quantifying the effective energy and mass...
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