pelitic


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pelitic

[pə′lid·ik]
(geology)
Pertaining to, characteristic of, or derived from pelite.
References in periodicals archive ?
1 Ma, for the John Lee Brook Granite, the oldest 'S-type' pluton in the backarc region; the former was likely generated at least in part by partial melting of Neoproterozoic volcanic and plutonic rocks underlying the Mascarene belt, and the latter at least in part by granulite-facies dehydration melting of pelitic rocks of the St.
In a similar way, Las Mercedes and Las Brisas units of central Venezuela, the Araya and Paria peninsulas pelitic and psamitic units, all low grade metasediments, have been interpreted as part of the Late Jurassic-Late Cretaceous passive margin of Northern South America.
Interpretation thus far shows mineralization to be primarily focused in a footwall steeply south dipping package of E-NE trending pelitic gneiss, sandwiched between a semi-pelitic rock to the north and a quartz-feldspar gneiss to the south.
The continental side and central area were dominated by pelitic fractions (silt and clay) associated with high values of organic carbon and nitrogen.
Its blank was a pebble of spotted pelitic hornfels (cordierite hornfels), which they said 'are abundant in the Nepean River gravels, coming from a bedrock source in the upper Coxs River'.
The rock types include garnet-biotite gneiss, amphibolite and both pelitic and psammitic metamorphosed sediments.
studied the interaction between magma and sea water in the Miocene rhyolitic shallow intrusions, cryptodomes, and endogenous lava domes emplaced into and onto soft, wet pelitic sediments in a shallow submarine environment in NE Hungary.
The original calcareous, arenaceous and pelitic sediments were probably rich in bauxite or kaolinite and intercalated organic material (Cilek, 1980).
ii) Red, feldspathic, micaceous, silty sand (SILV) adjacent to pelitic schist exposures offroad near Silverton, 25km north-west of Broken Hill (New South Wales; 31[degrees]52'S, 141[degrees]11'E).
Even though growing on substrata of different nature (marly calcareous for Potentillo-Festucetum and flysch arenaceous pelitic for Brachypodio-Festucetum), the differences in floristic composition between the two communities do not appear to be such as to require a separation at association level (Tab.
Error estimation and empirical geothermobarometry for pelitic systems.