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all geography including DSDP/ODP Sites and Legs
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geochronology methods
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Cenozoic
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Quaternary
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Tertiary
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Oligocene
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upper Oligocene
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Mesozoic
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sulfides
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Primary terms
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absolute age (4)
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Africa
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Arctic region
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Greenland (1)
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Asia
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Far East
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China
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Australasia
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bacteria (1)
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boron (1)
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Canada
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Western Canada
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carbon
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C-13/C-12 (2)
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Caribbean region
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West Indies
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Antilles
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Bahamas (1)
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Cenozoic
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Quaternary
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Pleistocene
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lower Pleistocene (1)
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upper Pleistocene
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Tertiary
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Neogene
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Miocene
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middle Miocene (1)
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upper Miocene (1)
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Pliocene (1)
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Paleogene
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Eocene
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Green River Formation (1)
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upper Eocene
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La Meseta Formation (1)
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Oligocene
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upper Oligocene
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Chattian (1)
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Paleocene
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lower Paleocene
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Torrejonian (1)
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Nacimiento Formation (1)
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upper Paleocene (1)
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chemical analysis (5)
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Chordata
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Vertebrata
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Tetrapoda
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Aves
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Archaeopteryx (1)
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Neornithes
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Charadriiformes (1)
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Mammalia
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Theria
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Eutheria
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Fissipeda
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Canidae (2)
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Ursidae (1)
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Chiroptera (1)
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Condylarthra (1)
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Creodonta (1)
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Notoungulata (1)
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Perissodactyla
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Rodentia
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Sciuridae (1)
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Metatheria
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Reptilia
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Diapsida
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Archosauria
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dinosaurs
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Ornithischia
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Saurischia
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Sauropoda
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Ichthyosauria (1)
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mid-ocean ridge basalts (1)
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-
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inclusions
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fluid inclusions (2)
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Invertebrata
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Mollusca
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Bivalvia
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Heterodonta
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Veneroida (2)
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-
-
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Protista
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Foraminifera
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Rotaliina
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Globigerinacea
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Globigerinidae
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Orbulina
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Orbulina universa (1)
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-
-
-
-
-
-
-
isotopes
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stable isotopes
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C-13/C-12 (2)
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Fe-56/Fe-54 (1)
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Li-6 (1)
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O-16 (1)
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maps (1)
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Mesozoic
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Cretaceous
-
Upper Cretaceous
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Campanian
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Dinosaur Park Formation (1)
-
-
Hell Creek Formation (1)
-
Lance Formation (1)
-
Maestrichtian
-
upper Maestrichtian (1)
-
-
-
-
Jurassic
-
Solnhofen Limestone (1)
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Upper Jurassic
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Kimmeridgian (1)
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Morrison Formation (1)
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metal ores (1)
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metals
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actinides
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uranium (2)
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alkali metals
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Li-7 (1)
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alkaline earth metals
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Mexico
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North America
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Williston Basin (1)
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Ocean Drilling Program
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Leg 154
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ODP Site 927 (1)
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Leg 170
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ODP Site 1039 (1)
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ODP Site 1040 (1)
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ocean floors (2)
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Pacific Ocean
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Journal Article
Influence of phylogeny on the estimation of diet from dental morphology in the Carnivora
Journal: Paleobiology
Publisher: Paleontological Society
Published: 01 May 2022
Paleobiology (2022) 48 (2): 324–339.
.... The last column reports the difference between mass-corrected and uncorrected K values ( K diff), showing that although mass correction reduces the phylogenetic signal in most characters, many characters retain substantial degrees of phylogenetic signal. See Table 1 for diet proxy measurements...
Journal Article
Size-driven preservational and macroecological biases in the latest Maastrichtian terrestrial vertebrate assemblages of North America
Journal: Paleobiology
Publisher: Paleontological Society
Published: 01 May 2022
Paleobiology (2022) 48 (2): 210–238.
...Caleb M. Brown; Nicolás E. Campione; Gregory P. Wilson Mantilla; David C. Evans Abstract The end-Cretaceous (K/Pg) mass extinction event is the most recent and well-understood of the “big five” and triggered establishment of modern terrestrial ecosystem structure. Despite the depth of research...
Journal Article
Dietary and body-mass reconstruction of the Miocene neotropical bat Notonycteris magdalenensis (Phyllostomidae) from La Venta, Colombia
Journal: Paleobiology
Publisher: Paleontological Society
Published: 01 February 2022
Paleobiology (2022) 48 (1): 137–153.
... and Vampyrum spectrum . Also, we reconstructed the body mass of N. magdalenensis to be ~95 g, larger than most insectivorous bats, but smaller than the largest carnivorous bat ( V. spectrum ). Our results confirm that N. magdalenensis was not a specialized carnivore. It remains to be demonstrated...
Journal Article
The promise of taphonomy as a nomothetic discipline: taphonomic bias in two dinosaur-bearing faunas in North America 1
Journal: Canadian Journal of Earth Sciences
Publisher: Canadian Science Publishing
Published: 14 July 2021
Canadian Journal of Earth Sciences (2021) 58 (9): 852–869.
... al. (2013 c ) , the variables examined included time to discovery (TDi), time to description (TDe), estimated body mass, taphonomic mode of best-preserved specimen, and skeletal completeness. The methodology used to collect each variable is described in detail. This begs the question of whether...
Journal Article
Anisovolumetric weathering in granitic saprolite controlled by climate and erosion rate
Clifford S. Riebe, Russell P. Callahan, Sarah B.-M. Granke, Bradley J. Carr, Jorden L. Hayes, Marlie S. Schell, Leonard S. Sklar
Journal: Geology
Publisher: Geological Society of America
Published: 12 January 2021
Geology (2021) 49 (5): 551–555.
... be widespread. To explore this possibility, we quantified the fraction of porosity produced by physical weathering, F PP , at three sites with differing climates in granitic bedrock of the Sierra Nevada, California, USA. We found that strain produces more porosity than chemical mass loss at each site...
Journal Article
Discoveries of Mass Independent Isotope Effects in the Solar System: Past, Present and Future
Publisher: Mineralogical Society of America
Published: 01 January 2021
Reviews in Mineralogy and Geochemistry (2021) 86 (1): 35–95.
.... The discovery of the positive ray spectrograph, later termed mass spectrometer by Aston (1919) was a major breakthrough in understanding not only nuclear decay and stability but also led to the first calculations of different physical chemical properties by isotopic substitution. Lindemann (1919) tackled...
Journal Article
All Sizes Fit the Red Queen
Journal: Paleobiology
Publisher: Paleontological Society
Published: 01 November 2020
Paleobiology (2020) 46 (4): 478–494.
... on the relative frequencies observed. An asymmetric expansion in body-size range will inevitably show an increase in average body mass within the clade, as Jablonski ( 1997 ) empirically demonstrated for some Cretaceous mollusks. Gillman ( 2007 ) generalized this to vertebrate body mass ranges and showed...
Journal Article
Relationships of mass properties and body proportions to locomotor habit in terrestrial Archosauria
Peter J. Bishop, Karl T. Bates, Vivian R. Allen, Donald M. Henderson, Marcela Randau, John R. Hutchinson
Journal: Paleobiology
Publisher: Paleontological Society
Published: 01 November 2020
Paleobiology (2020) 46 (4): 550–568.
... make Archosauria a useful clade with which to study the interplay between body size, shape, and locomotor behavior, and how this interplay may have influenced locomotor evolution. Here, digital volumetric models of 80 taxa are used to explore how mass properties and body proportions relate to each...
Journal Article
Body size correlates with discrete-character morphological proxies
Journal: Paleobiology
Publisher: Paleontological Society
Published: 01 August 2020
Paleobiology (2020) 46 (3): 304–319.
... from the original data; therefore, whether such morphospaces accurately reflect body-plan disparity or extrinsic factors, such as body size, remains uncertain. We collated nine character–taxon matrices of dinosaurs together with body-mass estimates for all taxa and tested for relationships between body...
Journal Article
Advances in the use of isotopes in geochemical exploration: instrumentation and applications in understanding geochemical processes
Publisher: Geological Society of London
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...
Journal Article
Constraining the Role of Shell Porosity in the Regulation of Shell Calcification Intensity in the Modern Planktonic Foraminifer Orbulina Universa d'Orbigny
Journal: Journal of Foraminiferal Research
Published: 01 April 2020
Journal of Foraminiferal Research (2020) 50 (2): 195–203.
... of the planktonic Foraminifera Orbulina universa : A source for paleoceanographic information? :
Brazilian Journal of Oceanography , v.
67 , p.
e19252 .
Fisher,
C.
,
2003 ,
Planktic foraminiferal porosity: A water mass proxy...
Includes: Supplemental Content
Journal Article
Strangers in a strange land: Ecological dissimilarity to metatherian carnivores may partly explain early colonization of South America by Cyonasua- group procyonids
Journal: Paleobiology
Publisher: Paleontological Society
Published: 12 September 2019
Paleobiology (2019) 45 (4): 598–611.
... 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 and Chapalmalania , FMNH...
Journal Article
Reconstructing the mass and thermal ecology of North American Pleistocene tortoises
Journal: Paleobiology
Publisher: Paleontological Society
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...
Journal Article
NICHE PARTITIONING OF THE EUROPEAN CARNIVOROUS MAMMALS DURING THE PALEOGENE
Journal: PALAIOS
Publisher: SEPM Society for Sedimentary Geology
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...
Journal Article
Increasing Student Understanding of Response Spectra: An Argument for the Inductive Learning Approach
H. Benjamin Mason, M. EERI, David S. Hurwitz, Rachel K. Adams, Kamilah Buker, Richard K. Slocum, Michael H. Scott, M. EERI
Journal: Earthquake Spectra
Publisher: Earthquake Engineering Research Institute
Published: 01 May 2018
Earthquake Spectra (2018) 34 (2): 459–469.
... for understanding the response of undamped and damped single degree of freedom mass-spring oscillators to earthquake motion. The switch from mechanical pendulums to computational methods for creating response spectra was transformative for the field of earthquake engineering, and led to its proliferation...
Journal Article
Random Response Spectrum Analysis of Gravity Dam Classes: Simplified, Practical, and Fast Approach
Journal: Earthquake Spectra
Publisher: Earthquake Engineering Research Institute
Published: 01 May 2018
Earthquake Spectra (2018) 34 (2): 941–975.
... with the simplified Westergaard (1933) model, and the dam inertial force is computed as a product of mass and a seismic coefficient (ratio of peak ground acceleration – PGA; USACE 1995 ). No higher mode effect or dam–reservoir interaction has been taken into consideration. The maximum structural response...
Journal Article
A Framework to Evaluate the Benefit of Seismic Upgrading
Journal: Earthquake Spectra
Publisher: Earthquake Engineering Research Institute
Published: 01 May 2018
Earthquake Spectra (2018) 34 (2): 527–548.
... estimated according to the pushover elasto-plastic response idealization, M s is the seismic mass of the structure, and d y and d u are, respectively, the yielding and the ultimate displacement determined from a nonlinear static pushover analysis of the structure (see Lagomarsino et al. 2006...
Journal Article
The Influence of Accidental Torsion on the Inelastic Dynamic Response of Buildings during Earthquakes
Journal: Earthquake Spectra
Publisher: Earthquake Engineering Research Institute
Published: 01 February 2018
Earthquake Spectra (2018) 34 (1): 21–53.
... = 1 − Δ 0 Δ f where Δ o is the center of mass story drift computed without P-Delta and Δ f is the story drift including P-Delta. The torsional stability coefficients, Q θ , are determined by running a static linear-material analysis for the structure loaded...
Journal Article
Gravity anomalies of arbitrary 3D polyhedral bodies with horizontal and vertical mass contrasts up to cubic order
Journal: Geophysics
Publisher: Society of Exploration Geophysicists
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...
Journal Article
DIVERSITY AND FAUNAL COMPOSITION IN SHELL FRAGMENTS
Journal: PALAIOS
Publisher: SEPM Society for Sedimentary Geology
Published: 10 October 2017
PALAIOS (2017) 32 (10): 639–646.