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The Hirnantian glacial landsystem of the Sahara: a meltwater-dominated system
Geological Society, London, Memoirs, 2016During the Hirnantian (443 Ma), ice sheets expanded towards the present-day north over North Africa and the Arabian Peninsula when the western part of the Gondwana supercontinent straddled the South Pole. A glacigenic succession is exposed around the flanks of several Saharan cratonic basins, including Murzuq and Al Kufrah basins in Libya.
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The Hirnantian δ13C Positive Excursion in the Nabiullino Section (South Urals)
Doklady Earth Sciences, 2018The upper Sandbian, Katian, and Hirnantian complexes of conodonts in the upper Ordovician section of the western slope of the Southern Urals near the village of Nabiullino were studied. The δ13C positive excursion with a maximum of 3.3‰ associated with the global Hirnantian isotopic event, HICE, was fixed for the first time.
R. R. Yakupov +2 more
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Middle East Oil, Gas and Geosciences Show (MEOS GEO)
The Late Ordovician marked one of Earth's most profound climatic transitions, culminating in the Hirnantian glaciation and the second-largest mass extinction in the Phanerozoic (Finlay et al., 2010). Glacial advance during this stage extended as far as ∼30°S (Trotter et al., 2008; Phol et al., 2016; Cocks & Torsvik, 2021), sculpting widespread ...
Stefano Patruno +3 more
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The Late Ordovician marked one of Earth's most profound climatic transitions, culminating in the Hirnantian glaciation and the second-largest mass extinction in the Phanerozoic (Finlay et al., 2010). Glacial advance during this stage extended as far as ∼30°S (Trotter et al., 2008; Phol et al., 2016; Cocks & Torsvik, 2021), sculpting widespread ...
Stefano Patruno +3 more
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Late Hirnantian Clastic Depositional Systems Using Sequence Stratigraphy and Chronostratigraphy
Abu Dhabi International Petroleum Exhibition & Conference, 2018Abstract The Hoban and Baqaa Members are located between the glacial to early post-glacial Sarah Formation (Ordovician) and the Qalibah Formation (Silurian). They have been distinguished as separate stratigraphic units in few outcrops of northern Saudi Arabia based on palynological analyses, graptolites, shell fragments, and their ...
Saeed Alshahrani, Rainer Zuhlke
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Katian prelude to the Hirnantian (Late Ordovician) mass extinction: a Baltic perspective
Geological Journal, 2011AbstractThe diversity of several groups of Late Ordovician fossils in the Baltic is discussed and corresponding curves are presented. The curves are correlated with the latest δ13C trend and probable sea surface temperatures of the equatorial ocean in order to link biodiversity and environmental changes.
Dimitri Kaljo +5 more
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THE HIRNANTIAN ISOTOPE CARBON EXCURSION (HICE) IN SOUTHERN NORWAY
Geological Society of America Abstracts with Programs, 2017Mikael Calner +2 more
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Phosphorus cycling during the Hirnantian glaciation
Palaeogeography, Palaeoclimatology, PalaeoecologyJohann Müller +4 more
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A New Echinoderm Fauna From The Hirnantian Of Indiana
Geological Society of America Abstracts with ProgramsLincoln Shoemaker, Carlton Brett
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Astronomical calibration of the Hirnantian Isotopic Carbon Excursion
Palaeogeography, Palaeoclimatology, PalaeoecologyJiawen Ouyang +8 more
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A LATE HIRNANTIAN FAUNA IN EROSIONAL REMNANT OF THE WHIPPOORWILL FORMATION IN SOUTHEASTERN INDIANA
Geological Society of America Abstracts with Programs, 2023Cole Farnam +4 more
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