Professor Darren Grocke's Outputs (8)

Paleotemperature and paleosalinity inferences and chemostratigraphy across the Aptian/Albian boundary in the subtropical North Atlantic (2011)
Journal Article
Huber, B., MacLeod, K., Gröcke, D., & Kucera, M. (2011). Paleotemperature and paleosalinity inferences and chemostratigraphy across the Aptian/Albian boundary in the subtropical North Atlantic. Paleoceanography, 26(4), Article PA4221. https://doi.org/10.1029/2011pa002178

[1] Geochemical analyses of extraordinarily well preserved late Aptian–early Albian foraminifera from Blake Nose (Ocean Drilling Program Site 1049) reveal rapid shifts of δ18O, δ13C, and 87Sr/88Sr in the subtropical North Atlantic that may be linked... Read More about Paleotemperature and paleosalinity inferences and chemostratigraphy across the Aptian/Albian boundary in the subtropical North Atlantic.

Historical ecology of late Holocene sea otters (Enhydra lutris) from northern British Columbia: isotopic and zooarchaeological perspectives (2011)
Journal Article
Szpak, P., Orchard, T., McKechnie, I., & Gröcke, D. (2012). Historical ecology of late Holocene sea otters (Enhydra lutris) from northern British Columbia: isotopic and zooarchaeological perspectives. Journal of Archaeological Science, 39(5), 1553-1571. https://doi.org/10.1016/j.jas.2011.12.006

We examined the isotopic composition (δ13C and δ15N) of sea otter (Enhydra lutris) bone collagen from ten late Holocene (ca. 5200 years BP–AD 1900) archaeological sites in northern British Columbia (BC), Canada. Because sea otters are now extinct fro... Read More about Historical ecology of late Holocene sea otters (Enhydra lutris) from northern British Columbia: isotopic and zooarchaeological perspectives.

An open ocean record of the Toarcian oceanic anoxic event (2011)
Journal Article
Gröcke, D., Hori, R., Trabucho-Alexandre, J., Kemp, D., & Schwark, L. (2011). An open ocean record of the Toarcian oceanic anoxic event. Solid Earth, 2(2), 245-257. https://doi.org/10.5194/se-2-245-2011

Oceanic anoxic events were time intervals in the Mesozoic characterized by widespread distribution of marine organic matter-rich sediments (black shales) and significant perturbations in the global carbon cycle. These perturbations are globally recor... Read More about An open ocean record of the Toarcian oceanic anoxic event.

Black shale deposition, atmospheric CO2 drawdown, and cooling during the Cenomanian-Turonian Oceanic Anoxic Event (2011)
Journal Article
Jarvis, I., Lignum, J., Gröcke, D., Jenkyns, H., & Pearce, M. (2011). Black shale deposition, atmospheric CO2 drawdown, and cooling during the Cenomanian-Turonian Oceanic Anoxic Event. Paleoceanography, 26(3), Article PA3201. https://doi.org/10.1029/2010pa002081

[1] Oceanic Anoxic Event 2 (OAE2), spanning the Cenomanian-Turonian boundary (CTB), represents one of the largest perturbations in the global carbon cycle in the last 100 Myr. The δ13Ccarb, δ13Corg, and δ18O chemostratigraphy of a black shale–bearing... Read More about Black shale deposition, atmospheric CO2 drawdown, and cooling during the Cenomanian-Turonian Oceanic Anoxic Event.

Re-evaluation of the Mentelle Basin, a polyphase rifted margin basin, offshore southwest Australia: new insights from integrated regional seismic datasets (2011)
Journal Article
Maloney, D., Sargent, C., Direen, N., Hobbs, R., & Gröcke, D. (2011). Re-evaluation of the Mentelle Basin, a polyphase rifted margin basin, offshore southwest Australia: new insights from integrated regional seismic datasets. Solid Earth, 2(2), 107-123. https://doi.org/10.5194/se-2-107-2011

Vintage 2-D (two-dimensional) seismic reflection surveys from the sparsely explored Mentelle Basin (western Australian margin) have been reprocessed and integrated with a recent high-quality 2-D seismic survey and stratigraphic borehole data. Interpr... Read More about Re-evaluation of the Mentelle Basin, a polyphase rifted margin basin, offshore southwest Australia: new insights from integrated regional seismic datasets.

Sea level controls sedimentation and environments in coastal caves and sinkholes (2011)
Journal Article
van Hengstum, P., Scott, D., Gröcke, D., & Charette, M. (2011). Sea level controls sedimentation and environments in coastal caves and sinkholes. Marine Geology, 286(1-4), 35-50. https://doi.org/10.1016/j.margeo.2011.05.004

Quaternary climate and sea-level research in coastal karst basins (caves, cenotes, sinkholes, blueholes, etc.) generally focuses on analyzing isotopes in speleothems, or associating cave elevations prior sea-level highstands. The sediments in coastal... Read More about Sea level controls sedimentation and environments in coastal caves and sinkholes.

The significance of an Early Jurassic (Toarcian) carbon-isotope excursion in Haida Gwaii (Queen Charlotte Islands), British Columbia, Canada (2011)
Journal Article
Caruthers, A., Gröcke, D., & Smith, P. (2011). The significance of an Early Jurassic (Toarcian) carbon-isotope excursion in Haida Gwaii (Queen Charlotte Islands), British Columbia, Canada. Earth and Planetary Science Letters, 307(1-2), 19-26. https://doi.org/10.1016/j.epsl.2011.04.013

During the Early Toarcian there was a significant disruption in the short-term active carbon reservoir as revealed by carbon-isotope records, which show a broad positive shift that is interrupted by a large 5–7‰ negative excursion (δ13Corg). Carbon-i... Read More about The significance of an Early Jurassic (Toarcian) carbon-isotope excursion in Haida Gwaii (Queen Charlotte Islands), British Columbia, Canada.

Improving the interpretability of air-gun seismic reflection data using deterministic filters: A case history from offshore Cape Leeuwin, south-west Australia (2011)
Journal Article
Sargent, C., Hobbs, R., & Gröcke, D. (2011). Improving the interpretability of air-gun seismic reflection data using deterministic filters: A case history from offshore Cape Leeuwin, south-west Australia. Geophysics, 76(3), B113-B125. https://doi.org/10.1190/1.3554396

To identify drilling targets for an Integrated Ocean Drilling Program project to investigate high-latitude black shales required reinterpretation of legacy seismic data. The original processing had identified the major structures but was of insuffici... Read More about Improving the interpretability of air-gun seismic reflection data using deterministic filters: A case history from offshore Cape Leeuwin, south-west Australia.