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International Journal of Coal Geology, ISSN 0166-5162, 01/2016, Volume 153, pp. 87 - 98
The organic-rich shales of the Wufeng–Longmaxi Formations (Ordovician-Silurian) are one of the most important hydrocarbon source rocks and shale gas exploration targets in China... 
Thermal maturity | Wufeng–Longmaxi Formations | Organic pores | Graptolite | Upper Yangtze Platform | Shale gas | Wufeng-Longmaxi Formations | BARNETT-SHALE | ENERGY & FUELS | OPTICAL-PROPERTIES | WOODFORD | PORE STRUCTURE | ADSORPTION | SICHUAN BASIN | REFLECTANCE | GEOSCIENCES, MULTIDISCIPLINARY | SOURCE ROCKS | YANGTZE REGION | Oil and gas exploration | Shale oils | Optical properties
Journal Article
Canadian Journal of Earth Sciences, ISSN 0008-4077, 03/2016, Volume 53, Issue 8, pp. 763 - 773
The "butter shale" Lagerstatten of the Cincinnati Arch have produced an abundance of articulated trilobites, along with assorted bivalves and cephalopods.... 
PALEOECOLOGY | CRINOIDS | GEOSCIENCES, MULTIDISCIPLINARY | AREA | SERIES UPPER ORDOVICIAN | RESOLUTION | TAPHONOMY | FAUNAS | KENTUCKY | INDIANA | Geology, Stratigraphic | Methods | Natural history | Shale
Journal Article
Geosciences Journal, ISSN 1226-4806, 10/2019, Volume 23, Issue 5, pp. 695 - 705
... Ordovician (Sandbian) conodonts from the Hoedongri Formation of western Jeongseon, Korea Byung-Su Lee* Department of Earth Science Education, Chonbuk National University... 
Earth Sciences | conodonts | Upper Ordovician | Earth Sciences, general | Hoedongri Formation | Jeongseon area | Korea | GANSU | GEOSCIENCES, MULTIDISCIPLINARY | BASIN | Carbonates | Asymmetry | Dolomitic limestone | Fauna | Species classification | Basins | Platforms (geology) | Limestone | Ordovician | Sedimentary facies | Genera | 지질학
Journal Article
GFF, ISSN 1103-5897, 07/2015, Volume 137, Issue 3, pp. 226 - 244
...) enable recognition of most of the regional stages known from the Sandbian (Upper Ordovician) to lower Sheinwoodian... 
graptolites | conodonts | chitinozoans | Upper Ordovician | Gotland (Sweden) | Llandovery (Silurian) | CHITINOZOAN BIOSTRATIGRAPHY | WENLOCK | LATVIA | ESTONIA | PALEONTOLOGY | CHEMOSTRATIGRAPHY | GEOLOGY | LLANDOVERY | BALTOSCANDIA | CONODONT ZONATION | GOTLAND | GRAPTOLITE
Journal Article
Tectonophysics, ISSN 0040-1951, 06/2016, Volume 681, pp. 124 - 134
The first LA-ICP-MS U–Pb detrital zircon ages from quartzites located below (three samples) and above (one sample) the Upper Ordovician unconformity in the Central Pyrenees... 
Upper Ordovician unconformity | Detrital zircon | Ordovician rocks | Pyrenees | NORTHERN GONDWANA | NW IBERIA | SHRIMP | GEOCHEMISTRY & GEOPHYSICS | MASSIF | EVOLUTION | TERRANE | U-PB AGE | EASTERN PYRENEES | SARDINIA | INSIGHTS | Zirconium | Analysis | Radioactive age determination | Geochronology | Quartzites | Similarity | Rocks | Sedimentation | Shields | Zircon
Journal Article
Palaeogeography, Palaeoclimatology, Palaeoecology, ISSN 0031-0182, 2009, Volume 273, Issue 3, pp. 395 - 410
... are largely inferred from modern settings. Coastal upwelling has been suggested as a general hypothesis for Ordovician black shale deposition within the Iapetus Ocean, but has not been directly tested... 
Katian | Organic carbon | δ13C org | Climate | Ashgill | Upper Ordovician | Redox | Upwelling | TOC | Trace metal | MATTER | SEDIMENTS | CO2 | WATER COLUMN | MODEL | PRESERVATION | GEOGRAPHY, PHYSICAL | GEOSCIENCES, MULTIDISCIPLINARY | PALEONTOLOGY | delta C-13(org) | BLACK SHALES | ISOTOPE COMPOSITION | WALES | LOW-GRADE METAMORPHISM | Metamorphism (Geology) | Basins (Geology) | Trade-winds | Rocks, Metamorphic | Upwelling (Oceanography) | Rocks, Sedimentary | Shale | Ocean bottom | Sedimentation | Case studies | Geological surveys | Industrial productivity | Analysis
Journal Article
Palaeogeography, Palaeoclimatology, Palaeoecology, ISSN 0031-0182, 12/2012, Volume 367-368, pp. 44 - 62
Skeletal concentrations in mudstones may represent local facies produced by storm winnowing in shallow water, or time-specific deposits related to intervals of diminished sediment supply. Upper Ordovician (Katian... 
Taconic Orogeny | Shell beds | Upper Ordovician Katian | Event deposits | Sediment starvation | Tempestite | Upper ordovician katian | Taconic orogeny | FAUNAL GRADIENT ANALYSIS | TSUNAMI DEPOSITS | HARDPART-INPUT | METER-SCALE CYCLICITY | FORELAND BASIN | LATE MIDDLE | GEOGRAPHY, PHYSICAL | GEOSCIENCES, MULTIDISCIPLINARY | PALEONTOLOGY | SEQUENCE STRATIGRAPHY | KOPE FORMATION | FAIRVIEW FORMATIONS | NEW-YORK | Turbulence | Starvation | Tsunamis | Analysis | Sediments (Geology)
Journal Article
Petroleum Exploration and Development Online, ISSN 1876-3804, 10/2018, Volume 45, Issue 5, pp. 862 - 872
Based on the corresponding relationship between the paleoproductivity, redox conditions and volcanism within a chronostratigraphic framework, the effects of... 
shale | organic abundance | sequence stratigraphy | Silurian Longmaxi Formation | Ordovician Wufeng Formation | Upper Yangtze area | bentonite | volcanism
Journal Article
PALAIOS, ISSN 0883-1351, 2016, Volume 31, Issue 3, pp. 55 - 70
Abstract Small fossils are preserved as phosphatic (carbonate fluorapatite) micro-steinkerns (~ 0.5 mm diameter) in Upper Ordovician beds of the Cincinnati area... 
GASTROPOD EVIDENCE | OXYGEN MINIMUM ZONE | USA | PALEONTOLOGY | ENVIRONMENTS | GEOLOGY | BODY-SIZE | SERIES UPPER ORDOVICIAN | MASS EXTINCTION | OHIO REGION | GLACIATION | FOSSIL RECORD
Journal Article
BULLETIN OF GEOSCIENCES, ISSN 1214-1119, 2013, Volume 88, Issue 1, pp. 95 - 104
The preservation of digestive structures of trilobites is extremely rare. Here we describe two new examples of trilobites from the Upper Ordovician Letna Formation... 
trilobites | soft-tissue preservation | digestive system | Czech Republic | GEOSCIENCES, MULTIDISCIPLINARY | PALEONTOLOGY | Letna Formation | Upper Ordovician | DIGESTIVE-SYSTEM
Journal Article
Stratigraphy and Geological Correlation, ISSN 0869-5938, 5/2018, Volume 26, Issue 3, pp. 261 - 266
Journal Article
PALEOCEANOGRAPHY, ISSN 0883-8305, 10/2009, Volume 24
The delta(18) O records obtained from conodonts suggest that during the Mid-Ordovician, equatorial temperatures stabilized at close to the present day, a hypothesis broadly supported by published climate models... 
PALEONTOLOGY | BIOSTRATIGRAPHY | SCANIA | SEQUENCE | SEA-SURFACE TEMPERATURES | GLACIATION | SEAWATER | CARADOC UPPER ORDOVICIAN
Journal Article
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