Petrography and origin of the Lower Ordovician microbial carbonates in the Songzi Area of Hubei Province, middle Yangtze region, China
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DOI: 10.1007/s12182-019-0346-2
Abstract: This study is the first systematic assessment of the Lower Ordovician microbial carbonates in Songzi, Hubei Province, China. This paper divides the microbial carbonates into two types according to growth patterns, namely nongranular and granular.… read more here.
Keywords: carbonates songzi; hubei province; area; microbial carbonates ... See more keywords
Dolomitization and hydrotectonic model of burial dolomitization of the Furongian-Lower Ordovician carbonates in the Tazhong Uplift, central Tarim Basin, NW China: Implications from petrography and geochemistry
Sign Up to like & getrecommendations! Published in 2019 at "Marine and Petroleum Geology"
DOI: 10.1016/j.marpetgeo.2019.04.018
Abstract: Abstract The nature of the dolomitizing fluids and genesis of the Furongian-Lower Ordovician dolomites and dolomite cements are interpreted on the basis of petrography, geochemistry (trace elements, REEs, O-C-Sr isotopes) and fluid inclusion microthermometry. These… read more here.
Keywords: lower ordovician; furongian lower; dolomitization; tazhong uplift ... See more keywords
X-ray microtomography applied to fossils preserved in compression: Palaeoscolescid worms from the Lower Ordovician Fezouata Shale
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DOI: 10.1016/j.palaeo.2018.07.012
Abstract: Abstract Computed microtomography (XR-μCT) was used to study the three-dimensional morphology of Palaeoscolex cf. tenensis, a palaeoscolecid worm from the Lower Ordovician Fezouata Lagerstatte (Central Anti-Atlas, Morocco). This method revealed important aspects of its internal… read more here.
Keywords: lower ordovician; ordovician fezouata; microtomography applied; ray microtomography ... See more keywords
Chitinozoans from the upper Tremadocian (Lower Ordovician) Watch Hill Formation of the Lake District, northern England
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DOI: 10.1080/01916122.2017.1348721
Abstract: ABSTRACT The Global Stratotype Section and Point (GSSP) for the Lower Ordovician Floian Stage is defined by the first appearance datum (FAD) of the graptolite Tetragraptus approximatus at Diabasbrottet Quarry, Hunneberg, southern Sweden. Correlation of… read more here.
Keywords: lower ordovician; hill formation; watch hill;
Glendonite-Like Carbonate Aggregates from the Lower Ordovician Koporye Formation (Russian Part of the Baltic Klint): Detailed Mineralogical and Geochemical Data and Paleogeographic Implications
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DOI: 10.3390/min9090524
Abstract: Stellate and plate-like carbonate bodies, traditionally called anthraconites, are found throughout the Baltic-Ladoga Klint in bituminous shale of the Koporye Formation (Tremadocian, Lower Ordovician). Although this time interval is usually considered as a greenhouse, there… read more here.
Keywords: like carbonate; part; russian part; part baltic ... See more keywords
Trilobites and Sedimentary Settings from the Lower Ordovician (Tremadocian; Bienvillia tetragonalis Biozone) of Iturbe, Jujuy Province, Argentina
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DOI: 10.5710/amgh.15.10.2019.3257
Abstract: Abstract. In the Argentinian Cordillera Oriental, the Iturbe River area represents an intermediate territory between Sierra de Santa Victoria to the north and the Quebrada de Humahuaca to the south. Lower Ordovician outcrops of this… read more here.
Keywords: jujuy province; iturbe; bienvillia tetragonalis; lower ordovician ... See more keywords