GB Physical geography

Brief communication: Impacts of a developing polynya off Commonwealth Bay, East Antarctica, triggered by grounding of iceberg B09B (2016)
Journal Article
(2016). Brief communication: Impacts of a developing polynya off Commonwealth Bay, East Antarctica, triggered by grounding of iceberg B09B. Cryosphere, 2603 -2609. https://doi.org/10.5194/tc-10-2603-2016

The dramatic calving of the Mertz Glacier tongue in 2010, precipitated by the movement of iceberg B09B, reshaped the oceanographic regime across the Mertz Polynya and Commonwealth Bay, regions where high-salinity shelf water (HSSW) - the precursor to... Read More about Brief communication: Impacts of a developing polynya off Commonwealth Bay, East Antarctica, triggered by grounding of iceberg B09B.

Impacts of marine instability across the East Antarctic Ice Sheet on Southern Ocean dynamics (2016)
Journal Article
(2016). Impacts of marine instability across the East Antarctic Ice Sheet on Southern Ocean dynamics. Cryosphere, 2317 -2328. https://doi.org/10.5194/tc-10-2317-2016

Recent observations and modelling studies have demonstrated the potential for rapid and substantial retreat of large sectors of the East Antarctic Ice Sheet (EAIS). This has major implications for ocean circulation and global sea level. Here we exami... Read More about Impacts of marine instability across the East Antarctic Ice Sheet on Southern Ocean dynamics.

The ‘Roxolany Tephra’ (Ukraine) – new evidence for an origin from Ciomadul volcano, East Carpathians (2016)
Journal Article
Gertisser. (2016). The ‘Roxolany Tephra’ (Ukraine) – new evidence for an origin from Ciomadul volcano, East Carpathians. Journal of Quaternary Science, 565-576. https://doi.org/10.1002/jqs.2879

We present major element glass data and correlations for the ‘Roxolany Tephra’ - a so far geochemically unconstrained volcanic ash layer previously described in last glacial (Marine Isotope Stage 2) loess deposits of the Roxolany loess–palaeosol comp... Read More about The ‘Roxolany Tephra’ (Ukraine) – new evidence for an origin from Ciomadul volcano, East Carpathians.

Geothermal energy from the Main Karoo Basin? New insights from borehole KWV-1 (Eastern Cape, South Africa) (2016)
Journal Article
(2016). Geothermal energy from the Main Karoo Basin? New insights from borehole KWV-1 (Eastern Cape, South Africa). Geothermal Energy, https://doi.org/10.1186/s40517-016-0051-y

Deep sedimentary basins are currently being assessed globally with respect to their geothermal energy resources. So far, the utilization of deep geothermal energy has not been addressed or included in any renewable energy scheme of South Africa. Howe... Read More about Geothermal energy from the Main Karoo Basin? New insights from borehole KWV-1 (Eastern Cape, South Africa).

Reconstruction of the East Africa and Antarctica continental margins (2016)
Journal Article
(2016). Reconstruction of the East Africa and Antarctica continental margins. Journal of Geophysical Research: Solid Earth, 4156 -4179. https://doi.org/10.1002/2015JB012776

The Early Jurassic separation of Antarctica from Africa plays an important role in our understanding of the dispersal of Gondwana and Pangea. Previous reconstruction models contain overlaps and gaps in the restored margins that reflect difficulties i... Read More about Reconstruction of the East Africa and Antarctica continental margins.

Palynofacies patterns of the Highveld coal deposits (Karoo Basin, South Africa): Clues to reconstruction of palaeoenvironment and palaeoclimate (2016)
Journal Article
(2016). Palynofacies patterns of the Highveld coal deposits (Karoo Basin, South Africa): Clues to reconstruction of palaeoenvironment and palaeoclimate. https://doi.org/10.1515/acpa-2016-0004

The early Permian represents a crucial period of climate change in Gondwana. This climate signature is captured in the palynological record that represents the floral assemblage of the region. Palynofacies analysis of the No. 2 Coal Seam of the Highv... Read More about Palynofacies patterns of the Highveld coal deposits (Karoo Basin, South Africa): Clues to reconstruction of palaeoenvironment and palaeoclimate.

Glacier-Permafrost interactions, debris transfer mechanisms and the development of distinctive sediment-landform associations in a High Arctic glacial environment: the case of Fountain Glacier, Bylot Island, Nunavut, Canada (2016)
Conference Proceeding
Waller, R., Hambrey, M., & Moorman, B. (2016). Glacier-Permafrost interactions, debris transfer mechanisms and the development of distinctive sediment-landform associations in a High Arctic glacial environment: the case of Fountain Glacier, Bylot Island, Nunavut, Canada. In XI. International Conference On Permafrost – Book of Abstracts, 20 – 24 June 2016, Potsdam, Germany (106-107). https://doi.org/10.2312/GFZ.LIS.2016.001

Detailed investigations of the sediment-landform associations being actively created in modern-day periglacial environments provide the opportunity to constrain the linkages between process and form that underpin palaeoenvironmental reconstructions.... Read More about Glacier-Permafrost interactions, debris transfer mechanisms and the development of distinctive sediment-landform associations in a High Arctic glacial environment: the case of Fountain Glacier, Bylot Island, Nunavut, Canada.

Slab mantle dehydrates beneath Kamchatka – yet recycles water into the deep mantle (2016)
Journal Article
Konrad-Schmolke, M., Halama, R., & Manea, V. (2016). Slab mantle dehydrates beneath Kamchatka – yet recycles water into the deep mantle. Geochemistry, Geophysics, Geosystems, 2987-3007. https://doi.org/10.1002/2016GC006335

The subduction of hydrated slab mantle is the most important and yet weakly constrained factor in the quantification of the Earth's deep geologic water cycle. The most critical unknowns are the initial hydration state and the dehydration behavior of... Read More about Slab mantle dehydrates beneath Kamchatka – yet recycles water into the deep mantle.

Slab mantle dehydrates beneath Kamchatka – yet recycles water into the deep mantle (2016)
Journal Article
(2016). Slab mantle dehydrates beneath Kamchatka – yet recycles water into the deep mantle. Geochemistry, Geophysics, Geosystems, https://doi.org/10.1002/2016GC006335

The subduction of hydrated slab mantle is the most important and yet weakly constrained factor in the quantification of the Earth’s deep geologic water cycle. The most critical unknowns are the initial hydration state and the dehydration behavior of... Read More about Slab mantle dehydrates beneath Kamchatka – yet recycles water into the deep mantle.

Internal U, Th and Rb concentrations of alkali-feldspar grains: Implications for luminescence dating (2016)
Journal Article
(2016). Internal U, Th and Rb concentrations of alkali-feldspar grains: Implications for luminescence dating. Quaternary Science Reviews, 16 -25. https://doi.org/10.1016/j.quageo.2016.05.002

This study assesses whether internal U, Th and Rb concentrations of single grains of alkali-feldspar can impact upon luminescence dating. Internal alpha dose-rates determined for two sedimentary samples calculated from mean U and Th concentrations ac... Read More about Internal U, Th and Rb concentrations of alkali-feldspar grains: Implications for luminescence dating.

Petrography and geochemistry of Palaeozoic quartz-rich sandstones from Saudi Arabia: implications for provenance and chemostratigraphy (2016)
Journal Article
(2016). Petrography and geochemistry of Palaeozoic quartz-rich sandstones from Saudi Arabia: implications for provenance and chemostratigraphy. Arabian Journal of Geosciences, https://doi.org/10.1007/s12517-016-2412-z

The Arabian Peninsula hosts a thick Palaeozoic succession, ranging from the Cambrian through the Permian. It not only contains deposits of the two major Palaeozoic glaciations but also holds both the major Palaeozoic hydrocarbon source and reservoir... Read More about Petrography and geochemistry of Palaeozoic quartz-rich sandstones from Saudi Arabia: implications for provenance and chemostratigraphy.

Temporal evolution of a post-caldera, mildly peralkaline magmatic system: Furnas volcano, São Miguel, Azores (2016)
Journal Article
Gertisser. (2016). Temporal evolution of a post-caldera, mildly peralkaline magmatic system: Furnas volcano, São Miguel, Azores. Contributions to Mineralogy and Petrology, https://doi.org/10.1007/s00410-016-1235-y

Furnas is one of three active central volcanoes on São Miguel Island, Azores, and is considered to be one of the most hazardous in the archipelago. In this study, the pre-eruptive magma plumbing system of the 10 young (<5 ka), intra-caldera, sub-Plin...

Magnesium isotope fractionation during carbonatite magmatism at Oldoinyo Lengai, Tanzania (2016)
Journal Article
Li, W., Teng, F., Halama, R., Keller, J., & Klaudius, J. (2016). Magnesium isotope fractionation during carbonatite magmatism at Oldoinyo Lengai, Tanzania. Earth and Planetary Science Letters, 26 -33. https://doi.org/10.1016/j.epsl.2016.03.034

To investigate the behaviour of Mg isotopes during carbonatite magmatism, we analyzed Mg isotopic compositions of natrocarbonatites and peralkaline silicate rocks from Oldoinyo Lengai, Tanzania. The olivine melilitites from the vicinity of Oldoinyo L... Read More about Magnesium isotope fractionation during carbonatite magmatism at Oldoinyo Lengai, Tanzania.

Application of the 15N gas-flux method for measuring in situ N2 and N2O fluxes due to denitrification in natural and semi-natural terrestrial ecosystems and comparison with the acetylene inhibition technique (2016)
Journal Article
(2016). Application of the 15N gas-flux method for measuring in situ N2 and N2O fluxes due to denitrification in natural and semi-natural terrestrial ecosystems and comparison with the acetylene inhibition technique. Biogeosciences, 1821 -1835. https://doi.org/10.5194/bg-13-1821-2016

Soil denitrification is considered the most un-constrained process in the global N cycle due to uncertain in situ N2 flux measurements, particularly in natural and semi-natural terrestrial ecosystems. 15N tracer approaches can provide in situ measure... Read More about Application of the 15N gas-flux method for measuring in situ N2 and N2O fluxes due to denitrification in natural and semi-natural terrestrial ecosystems and comparison with the acetylene inhibition technique.

The latest explosive eruptions of Ciomadul (Csomád) volcano, East Carpathians — A tephrostratigraphic approach for the 51–29ka BP time interval (2016)
Journal Article
Gertisser. (2016). The latest explosive eruptions of Ciomadul (Csomád) volcano, East Carpathians — A tephrostratigraphic approach for the 51–29ka BP time interval. Journal of Volcanology and Geothermal Research, 29-51. https://doi.org/10.1016/j.jvolgeores.2016.03.005

The most recent, mainly explosive eruptions of Ciomadul, the youngest volcano in the Carpatho-Pannonian Region, have been constrained by detailed field volcanological studies, major element pumice glass geochemistry, luminescence and radiocarbon dati... Read More about The latest explosive eruptions of Ciomadul (Csomád) volcano, East Carpathians — A tephrostratigraphic approach for the 51–29ka BP time interval.

The latest explosive eruptions of Ciomadul (Csomád) volcano, East Carpathians — A tephrostratigraphic approach for the 51–29 ka BP time interval (2016)
Journal Article
Gertisser. (2016). The latest explosive eruptions of Ciomadul (Csomád) volcano, East Carpathians — A tephrostratigraphic approach for the 51–29 ka BP time interval. Journal of Volcanology and Geothermal Research, 29-51. https://doi.org/10.1016/j.jvolgeores.2016.03.005

The most recent, mainly explosive eruptions of Ciomadul, the youngest volcano in the Carpatho-Pannonian Region, have been constrained by detailed field volcanological studies, major element pumice glass geochemistry, luminescence and radiocarbon dati... Read More about The latest explosive eruptions of Ciomadul (Csomád) volcano, East Carpathians — A tephrostratigraphic approach for the 51–29 ka BP time interval.

New insights into the provenance of Saudi Arabian Palaeozoic sandstones from heavy mineral analysis and single-grain geochemistry (2016)
Journal Article
(2016). New insights into the provenance of Saudi Arabian Palaeozoic sandstones from heavy mineral analysis and single-grain geochemistry. Sedimentary Geology, 100 -114. https://doi.org/10.1016/j.sedgeo.2015.12.009

Saudi Arabian Palaeozoic siliciclastics cover a stratigraphic range from the Cambrian to the Permian. They crop out along the eastern margin of the Arabian Shield and are comprised of highly mature sandstones. Their heavy mineral assemblage reflects... Read More about New insights into the provenance of Saudi Arabian Palaeozoic sandstones from heavy mineral analysis and single-grain geochemistry.

Luminescence dating of glacial advances at Lago Buenos Aires (~46 S), Patagonia (2016)
Journal Article
(2016). Luminescence dating of glacial advances at Lago Buenos Aires (~46 S), Patagonia. Quaternary Science Reviews, 59 -73. https://doi.org/10.1016/j.quascirev.2015.12.010

Understanding the timing of past glacial advances in Patagonia is of global climatic importance because of the insight this can provide into the influence on glacier behaviour of changes in temperature and precipitation related to the Southern Wester... Read More about Luminescence dating of glacial advances at Lago Buenos Aires (~46 S), Patagonia.