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Browsing by Subject "Geology"
Now showing items 1-20 of 48
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A baseline paleoecological study for the Santa Cruz Formation (late–early Miocene) at the Atlantic coast of Patagonia, Argentina
(Palaeogeography, Palaeoclimatology, Palaeoecology, 2010-06)Coastal exposures of the Santa Cruz Formation (late-early Miocene, southern Patagonia, Argentina) between the Coyle and Gallegos rivers have been a fertile ground for recovery of Miocene vertebrates for more than 100 years. ... -
A Bayesian Forward Simulation Approach to Establishing a Realistic Prior Model for Complex Geometrical Objects
(2018)Geology is a descriptive science making itself hard to provide quantification. We develop a Bayesian forward simulation approach to formulate a realistic prior model for geological images using the Approximate Bayesian ... -
A formal Anthropocene is compatible with but distinct from its diachronous anthropogenic counterparts: a response to W.F. Ruddiman’s ‘three flaws in defining a formal Anthropocene’
(Progress in Physical Geography, 2019-06-01)© The Author(s) 2019. We analyse the ‘three flaws’ to potentially defining a formal Anthropocene geological time unit as advanced by Ruddiman (2018). (1) We recognize a long record of pre-industrial human impacts, but note ... -
Amazon Climate Reconstruction Using Growth Rates and Stable Isotopes of Tree Ring Cellulose from the Madre De Dios Basin, Peru
(2009)The Amazon basin is a center of deep atmospheric convection and thus acts as a major engine for global atmospheric circulation. From this basin, one fifth of the world's freshwater flux is discharged into the Atlantic and ... -
An improved approach to age-modeling in deep time: Implications for the Santa Cruz Formation, Argentina
(Bulletin of the Geological Society of America, 2020-01-01)© 2019 Geological Society of America. Accurate age-depth models for proxy records are crucial for inferring changes to the environment through space and time, yet traditional methods of constructing these models ... -
Analysis of the Stability and Response of Deep-Seated Landslides by Monitoring their Basal Temperature
(2020)Deep-seated landslides are known as large slides involving millions of cubic meters that move as a rigid block on top of a deep (below the roots of the trees and the groundwater level) basal layer of heavily deformed minerals. ... -
Biodiversity loss from deep-sea mining
(Nature Geoscience, 2017-07-01) -
Biogeography in deep time - What do phylogenetics, geology, and paleoclimate tell us about early platyrrhine evolution?
(Mol Phylogenet Evol, 2015-01)Molecular data have converged on a consensus about the genus-level phylogeny of extant platyrrhine monkeys, but for most extinct taxa and certainly for those older than the Pleistocene we must rely upon morphological evidence ... -
Characterizing European Dependence on Russian Natural Gas
(2022)Russia's war in Ukraine in 2022 has put a new spotlight on Europe's overall reliance on Russian energy resources. As the subsequent international sanctions and Russia's weaponization of energy have caused an energy crisis ... -
Designing a network of critical zone observatories to explore the living skin of the terrestrial Earth
(Earth Surface Dynamics, 2017-12-18)The critical zone (CZ), the dynamic living skin of the Earth, extends from the top of the vegetative canopy through the soil and down to fresh bedrock and the bottom of the groundwater. All humans live in and depend on the ... -
Development and Implementation of Bayesian Computer Model Emulators
(2011)Our interest is the risk assessment of rare natural hazards, such aslarge volcanic pyroclastic flows. Since catastrophic consequences ofvolcanic flows are rare events, our analysis benefits from the use ofa computer model ... -
Distinct contributions of eroding and depositional profiles to land-atmosphere CO <inf>2</inf> exchange in two contrasting forests
(Frontiers in Earth Science, 2019-02-26)© 2019 Billings, Richter, Ziegler, Prestegaard and Wade. Lateral movements of soil organic C (SOC) influence Earth's C budgets by transporting organic C across landscapes and by modifying soil-profile fluxes of CO 2 . We ... -
First record of the Miocene hominoid Sivapithecus from Kutch, Gujarat state, western India.
(PloS one, 2018-01)Hominoid remains from Miocene deposits in India and Pakistan have played a pivotal role in understanding the evolution of great apes and humans since they were first described in the 19th Century. We describe here a hominoid ... -
Fractures, Faults, and Hydrothermal Systems of Puna, Hawaii, and Montserrat, Lesser Antilles
(2010)The focus of this work is to use geologic and geophysical methods to better understand the faults and fracture systems at Puna, in southeastern Hawaii, and southern Montserrat, in the Lesser Antilles. The particular interest ... -
From Layered Intrusions to Mid-Ocean Ridges: The Petrography and Geochemistry of Basaltic Magmas
(2020)The geochemical evolution of basaltic magmas, in a variety of settings, has been the subject of countless studies. In some instances, basaltic magmas evolve to form economic transition and precious metal ore bodies. The ... -
Geochemistry of Dikes and Lavas from Tectonic Windows
(2007-07-18)Tectonic windows are faulted escarpments that expose extensive sections of in situ oceanic crust, providing valuable opportunities to examine upper crustal architecture from a perspective unmatched by other approaches. Recent ... -
Glacial North Atlantic Millennial Variability over the Last 300,000 Years
(2008-11-26)The hematite-stained grain (HSG) proxy method, commonly employed by the late G.C. Bond to detect the "1500-year cycle" in North Atlantic climate, is reproduced and verified for the first time. The exact method is compiled ... -
Global Rates of Free Hydrogen (H2) Production by Serpentinization and other Abiogenic Processes within Young Ocean Crust
(2015)The main conclusion of this dissertation is that global H2 production within young ocean crust (<10 Mya) is higher than currently recognized, in part because current estimates of H2 production accompanying the serpentinization ... -
Habitat fragmentation and biodiversity conservation: key findings and future challenges
(Landscape Ecology, 2016-02-01) -
Ideas and perspectives: Strengthening the biogeosciences in environmental research networks
(Biogeosciences, 2018-08-15)© Author(s) 2018. Long-term environmental research networks are one approach to advancing local, regional, and global environmental science and education. A remarkable number and wide variety of environmental research networks ...
