Geophysical Monograph Series, Page 305-323., 2021 Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Brian Kendall +2 more
wiley +7 more sources
High palaeolatitude (Hodh, Mauritania) recovery of graptolite faunas after the Hirnantian (end Ordovician) extinction event [PDF]
Marine shales directly overlying lower Hirnantian (uppermost Ordovician) glacially related sediments in Mauritania (North-West Africa) have produced a rich graptolite fauna spanning the Ordovician-Silurian boundary in an area of high palaeolatitude.
Underwood, Charlie J. +2 more
core +6 more sources
Acritarchs of Llandeilo and Caradoo age from classic localities in Britain. [PDF]
, 1979 The last two decades have seen the publication of a large number of papers dealing with Palaeozoic acritarchs including many devoted to the description of Ordovician assemblages.
Turner, Robert Eric
core +5 more sources
The only known cyclopygid–‘atheloptic’ trilobite fauna from North America: the upper Ordovician fauna of the Pyle Mountain Argillite and its palaeoenvironmental significance [PDF]
, 2012 The trilobite fauna of the upper Ordovician (middle Katian) Pyle Mountain Argillite comprises a mixture of abundant mesopelagic cyclopygids and other pelagic taxa and a benthic fauna dominated by trilobites lacking eyes.
Bruton, D.L. +3 more
core +1 more source
Reservoir forming conditions and exploration potential of Lower Paleozoic carbonate rocks in Gucheng area, Tarim Basin [PDF]
E3S Web of Conferences, 2021 The Gucheng region is oil and gas accumulation area of Tarim Basin，dominated by beach controlled lithologic oil and gas reservoirs，which has superior oil and gas accumulation conditions and broad exploration prospects.
Zheng Liu +4 more
doaj +1 more source
THE AMERICAN UPPER ORDOVICIAN STANDARD [PDF]
Geological Society of America Bulletin, 1961 The large number of classifications of the type Cincinnatian (Ordovician) are to a great extent variations of a few fundamental concepts. Each of these elements is at least 40 years old and founded in the more rigid stratigraphic faiths of those times.
openaire +1 more source
Warm-water Dasycladaceae algae from the Late Ordovician of the Parahio Valley, Spiti, India [PDF]
Estonian Journal of Earth Sciences, 2019 Warm-water Dasycladaceae algae Mastopora and Cyclocrinites were for the first time recorded from the Takche Formation (Upper Ordovician–lower Silurian), Parahio Valley, Spiti, India.
Ravi S. Chaubey +5 more
doaj +1 more source
Population structure of graptolite assemblages [PDF]
, 1998 Graptolite rhabdosomes display a diverse suite of morphologies. The range of morphotypes present within most moderate to high diversity assemblages from the Ordovician and Silurian is similar, despite the different taxonomic composition of the faunas at ...
Underwood, Charlie J.
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Distribution of phosphorus in the Middle and Upper Ordovician Baltoscandian carbonate palaeobasin [PDF]
Estonian Journal of Earth Sciences, 2010 Baltoscandian Middle and Upper Ordovician carbonate rocks are relatively poor in phosphorus, with the P2O5 content of 0.05–0.5%, rarely exceeding 1%. Phosphorus distribution in the Ordovician carbonate succession shows spatial and temporal variations. In
Leho Ainsaar +3 more
doaj +1 more source
Geofluids, 2019 The upper Ordovician-lower Silurian shale has always been the main target of marine shale gas exploration in southern China. However, the shale gas content varies greatly across different regions.
Ming Wen +14 more
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