Search Results - "Adam Maloof"

A diurnal carbon engine explains 13C-enriched carbonates without increasing the global production of oxygen by Geyman, Emily C., Maloof, Adam C.

“…In the past 3 billion years, significant volumes of carbonate with high carbon-isotopic (δ 13C) values accumulated on shallow continental shelves. These…”
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Historical glacier change on Svalbard predicts doubling of mass loss by 2100 by Geyman, Emily C., J. J. van Pelt, Ward, Maloof, Adam C., Aas, Harald Faste, Kohler, Jack

“…The melting of glaciers and ice caps accounts for about one-third of current sea-level rise 1 – 3 , exceeding the mass loss from the more voluminous Greenland…”
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Probabilistic assessment of sea level during the last interglacial stage by Kopp, Robert E, Oppenheimer, Michael, Maloof, Adam C, Simons, Frederik J, Mitrovica, Jerry X

“…With polar temperatures ∼3–5 °C warmer than today, the last interglacial stage (∼125 kyr ago) serves as a partial analogue for 1–2 °C global warming scenarios…”
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Atmosphere–ocean oxygen and productivity dynamics during early animal radiations by Dahl, Tais W., Connelly, James N., Li, Da, Kouchinsky, Artem, Gill, Benjamin C., Porter, Susannah, Maloof, Adam C., Bizzarro, Martin

“…The proliferation of large, motile animals 540 to 520 Ma has been linked to both rising and declining O2 levels on Earth. To explore this conundrum, we…”
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Calibrating the Cryogenian by Macdonald, Francis A, Schmitz, Mark D, Crowley, James L, Roots, Charles F, Jones, David S, Maloof, Adam C, Strauss, Justin V, Cohen, Phoebe A, Johnston, David T, Schrag, Daniel P

“…The Neoproterozoic was an era of great environmental and biological change, but a paucity of direct and precise age constraints on strata from this time has…”
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A Simple Method for Extracting Water Depth From Multispectral Satellite Imagery in Regions of Variable Bottom Type by Geyman, Emily C., Maloof, Adam C.

“…Satellite imagery offers an efficient and cost‐effective means of estimating water depth in shallow environments. However, traditional empirical algorithms for…”
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Three-dimensional reconstructions of the putative metazoan Namapoikia show that it was a microbial construction by Mehra, Akshay, Watters, Wesley A., Grotzinger, John P., Maloof, Adam C.

“…Strata from the Ediacaran Period (635 million to 538 million years ago [Ma]) contain several examples of enigmatic, putative shell-building metazoan fossils…”
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Chemostratigraphic and U–Pb geochronologic constraints on carbon cycling across the Silurian–Devonian boundary by Husson, Jon M., Schoene, Blair, Bluher, Sarah, Maloof, Adam C.

“…The Devonian Period hosts extraordinary changes to Earth's biosphere. Land plants began their rise to prominence, with early vascular vegetation beginning its…”
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Physical and chemical stratigraphy suggest small or absent glacioeustatic variation during formation of the Paradox Basin cyclothems by Dyer, Blake, Maloof, Adam C

“…The Paradox Basin cyclothems previously have been interpreted as Milankovitch style glacial-interglacial cycles from the Late Paleozoic Ice Age, but an…”
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The origin of carbonate mud and implications for global climate by Geyman, Emily C, Wu, Ziman, Nadeau, Matthew D, Edmonsond, Stacey, Turner, Andrew, Purkis, Sam J, Howes, Bolton, Dyer, Blake, Ahm, Anne-Sofie C, Yao, Nan, Deutsch, Curtis A, Higgins, John A, Stolper, Daniel A, Maloof, Adam C

“…Carbonate mud represents one of the most important geochemical archives for reconstructing ancient climatic, environmental, and evolutionary change from the…”
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A diurnal carbon engine explains 13 C-enriched carbonates without increasing the global production of oxygen by Geyman, Emily C, Maloof, Adam C

“…In the past 3 billion years, significant volumes of carbonate with high carbon-isotopic ([Formula: see text]C) values accumulated on shallow continental…”
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Cryogenian Glaciation and the Onset of Carbon-Isotope Decoupling by Swanson-Hysell, Nicholas L, Rose, Catherine V, Calmet, Claire C, Halverson, Galen P, Hurtgen, Matthew T, Maloof, Adam C

“…Global carbon cycle perturbations throughout Earth history are frequently linked to changing paleogeography, glaciation, ocean oxygenation, and biological…”
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Branching archaeocyaths as ecosystem engineers during the Cambrian radiation by Manzuk, Ryan A., Maloof, Adam C., Kaandorp, Jaap A., Webster, Mark

“…The rapid origination and diversification of major animal body plans during the early Cambrian coincide with the rise of Earth's first animal‐built framework…”
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Possible animal-body fossils in pre-Marinoan limestones from South Australia by Maloof, Adam C, Rose, Catherine V, Beach, Robert, Samuels, Bradley M, Calmet, Claire C, Erwin, Douglas H, Poirier, Gerald R, Yao, Nan, Simons, Frederik J

“…The Neoproterozoic era was punctuated by the Sturtian (about 710 million years ago) and Marinoan (about 635 million years ago) intervals of glaciation. In…”
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Testing models for post-glacial ‘cap dolostone’ deposition: Nuccaleena Formation, South Australia by Rose, Catherine V., Maloof, Adam C.

“…Sedimentologically and geochemically distinctive carbonate sequences consistently drape the glacial deposits associated with the younger Cryogenian ice age…”
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How is sea level change encoded in carbonate stratigraphy? by Geyman, Emily C., Maloof, Adam C., Dyer, Blake

“…The history of organismal evolution, seawater chemistry, and paleoclimate is recorded in layers of carbonate sedimentary rock. Meter-scale cyclic stacking…”
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Pervasive remagnetization of detrital zircon host rocks in the Jack Hills, Western Australia and implications for records of the early geodynamo by Weiss, Benjamin P., Maloof, Adam C., Tailby, Nicholas, Ramezani, Jahandar, Fu, Roger R., Hanus, Veronica, Trail, Dustin, Bruce Watson, E., Harrison, T. Mark, Bowring, Samuel A., Kirschvink, Joseph L., Swanson-Hysell, Nicholas L., Coe, Robert S.

“…It currently is unknown when Earth's dynamo magnetic field originated. Paleomagnetic studies indicate that a field with an intensity similar to that of the…”
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To tune or not to tune: Detecting orbital variability in Oligo-Miocene climate records by Proistosescu, Cristian, Huybers, Peter, Maloof, Adam C.

“…We address the problem of detecting quasi-periodic variability at orbital frequencies within pre-Pleistocene climate records using depth-derived and orbitally…”
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New constraints on equatorial temperatures during a Late Neoproterozoic snowball Earth glaciation by Ewing, Ryan C., Eisenman, Ian, Lamb, Michael P., Poppick, Laura, Maloof, Adam C., Fischer, Woodward W.

“…Intense glaciation during the end of Cryogenian time (∼635 million years ago) marks the coldest climate state in Earth history – a time when glacial deposits…”
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Helium and thorium isotope constraints on African dust transport to the Bahamas over recent millennia by Hayes, Christopher T., McGee, David, Mukhopadhyay, Sujoy, Boyle, Edward A., Maloof, Adam C.

“…Despite its potential linkages with North Atlantic climate, the variability in Saharan dust transport to the western North Atlantic over the past two millennia…”
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