Search Results - "Opdyke, Bradley"
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Southern Hemisphere control on Australian monsoon variability during the late deglaciation and Holocene
Published in Nature communications (06-01-2015)“…The evolution of the Australian monsoon in relation to high-latitude temperature fluctuations over the last termination remains highly enigmatic. Here we…”
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Timescale dependent sedimentary record during the past 130 kyr from a tropical mixed siliciclastic–carbonate shelf edge and slope: Ashmore Trough (southern Gulf of Papua)
Published in Sedimentology (01-10-2021)“…In tropical and sub‐tropical mixed siliciclastic–carbonate depositional systems, fluvial input and in situ neritic carbonate interact over space and time…”
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3
Large variations in the Holocene marine radiocarbon reservoir effect reflect ocean circulation and climatic changes
Published in Earth and planetary science letters (01-07-2015)“…Accurate radiocarbon dating of marine samples requires knowledge of the marine radiocarbon reservoir effect. This effect for a particular site/region is…”
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Greenhouse conditions induce mineralogical changes and dolomite accumulation in coralline algae on tropical reefs
Published in Nature communications (12-02-2014)“…Human-induced ocean acidification and warming alter seawater carbonate chemistry reducing the calcification of reef-building crustose coralline algae (CCA),…”
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Middle Pleistocene re-organization of Australian Monsoon
Published in Nature communications (10-04-2023)“…The sensitivity of the Australian Monsoon to changing climate boundary conditions remains controversial due to limited understanding of forcing processes and…”
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Reviewing the circulation and mixing of Antarctic Intermediate Water in the South Pacific using evidence from geochemical tracers and Argo float trajectories
Published in Deep-sea research. Part I, Oceanographic research papers (01-03-2013)“…Evidence from physical and geochemical tracers measured during the World Ocean Circulation Experiment (WOCE) shows that there are four sub-types of Antarctic…”
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Responses of the deep ocean carbonate system to carbon reorganization during the Last Glacial–interglacial cycle
Published in Quaternary science reviews (15-09-2013)“…We present new deep water carbonate ion concentration ([CO32−]) records, reconstructed using Cibicidoides wuellerstorfi B/Ca, for one core from Caribbean Basin…”
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Effects of lower surface ocean pH upon the stability of shallow water carbonate sediments
Published in The Science of the total environment (15-02-2011)“…It is predicted that surface ocean pH will reach 7.9, possibly 7.8 by the end of this century due to increased carbon dioxide (CO 2) in the atmosphere and in…”
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Preindustrial to Modern Interdecadal Variability in Coral Reef pH
Published in Science (American Association for the Advancement of Science) (30-09-2005)“…The oceans are becoming more acidic due to absorption of anthropogenic carbon dioxide from the atmosphere. The impact of ocean acidification on marine…”
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Significance of shallow core transects for reef models and sea-level curves, Heron Reef, Great Barrier Reef
Published in Sedimentology (01-10-2016)“…A sequence of shallow reef cores from Heron Reef, Great Barrier Reef, provides new insights into Holocene reef growth models. Isochron analysis of a leeward…”
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Sequential changes in ocean circulation and biological export productivity during the last glacial–interglacial cycle: a model–data study
Published in Climate of the past (15-01-2021)“…We conduct a model–data analysis of the marine carbon cycle to understand and quantify the drivers of atmospheric CO2 concentration during the last…”
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12
Geochemical Consequences of Increased Atmospheric Carbon Dioxide on Coral Reefs
Published in Science (American Association for the Advancement of Science) (02-04-1999)“…A coral reef represents the net accumulation of calcium carbonate (CaCO$_3$) produced by corals and other calcifying organisms. If calcification declines, then…”
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Simple X-ray diffraction techniques to identify Mg calcite, dolomite, and magnesite in tropical coralline algae and assess peak asymmetry
Published in Journal of sedimentary research (01-12-2013)“…Understanding of dolomite development in reef environments has been frustrated by the failure to identify dolomite forming in abundant tropical reef algae. The…”
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14
The [simple carbon project] model v1.0
Published in Geoscientific Model Development (18-04-2019)“…We construct a carbon cycle box model to process observed or inferred geochemical evidence from modern and paleo settings. The [simple carbon project] model…”
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15
Neogene evolution of the mixed carbonate-siliciclastic system in the Gulf of Papua, Papua New Guinea
Published in Journal of Geophysical Research - Earth Surface (01-03-2008)“…This paper outlines the evolution of the late Cenozoic mixed carbonate‐siliciclastic depositional system in the Gulf of Papua (GoP), using seismic, gravity,…”
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Bundled turbidite deposition in the central Pandora Trough (Gulf of Papua) since Last Glacial Maximum: Linking sediment nature and accumulation to sea level fluctuations at millennial timescale
Published in Journal of Geophysical Research - Earth Surface (01-03-2008)“…Since Last Glacial Maximum (23–19 ka), Earth climate warming and deglaciation occurred in two major steps (Bølling‐Allerød and Preboreal), interrupted by a…”
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Deep water geomorphology of the mixed siliciclastic-carbonate system, Gulf of Papua
Published in Journal of Geophysical Research - Earth Surface (01-03-2008)“…The Gulf of Papua (GoP) has become a focal point for understanding the deposition and accumulation of siliciclastic and carbonate material along and across a…”
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Late Pleistocene and Holocene sedimentation, organic-carbon delivery, and paleoclimatic inferences on the continental slope of the northern Pandora Trough, Gulf of Papua
Published in Journal of Geophysical Research - Earth Surface (01-03-2008)“…We investigated sediment and organic‐carbon accumulation rates in two jumbo piston cores (MV‐54, MV‐51) retrieved from the midslope of the northeastern Pandora…”
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Developing community-based scientific priorities and new drilling proposals in the southern Indian and southwestern Pacific oceans
Published in Scientific drilling (Hokkaido, Japan) (22-10-2018)“…An International Ocean Discovery Program (IODP) workshop was held at Sydney University, Australia, from 13 to 16 June 2017 and was attended by 97 scientists…”
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Characterising the intermediate depth waters of the Pacific Ocean using δ13C and other geochemical tracers
Published in Deep-sea research. Part I, Oceanographic research papers (01-07-2010)Get full text
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