lithology

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lithology

(lĭth-ŏl′ō-jē) [″ + logos, word, reason]
The science dealing with calculi.
References in periodicals archive ?
The local anomalies of the gamma-gamma logging of individual lithological types of Jurassic rocks were calculated.
It was possible to follow temporal changes in the lithological composition of all cores on the basis of the obtained age--depth scales.
Therefore, effective application of AGRS to geological mapping and mineral exploration must rely on knowledge of: i) how the acquired radioactive element distributions correlate with normal lithologic signatures; ii) how these normal lithologic signatures are recognizably modified by mineralizing processes (alteration signatures); iii) how these lithological and alteration signatures are incorporated into surficial materials; and iv) how these surficial materials can be spatially related to bedrock sources.
Geochemical studies have been carried out for the representative samples of the lithological units along the contact zone.
Future lithological, biostratigraphical, and isotopic studies should supposedly clear up the details of sedimentation and enable more exact correlation of the Blidene Formation.
Geochemical and lithological analyses were compiled in spreadsheet form and descriptive statistics were performed using Cord[R] Quattro Pro 9.
These regions had 2726, 2350, and 859 wells and 5195, 3860, and 1179 unique lithological descriptions, respectively.
3 Many lithological types (coarse and medium sands), however, did not contain countable quantities of pollen or spores.
Since Fritz Hilgen (Institute of Earth Sciences, Utrecht) and his colleagues have independently calibrated cycles in Pliocene sediments exposed in southern Italy with astronomical cycles, this means not only that the last 6 million years of earth history are calibrated with a precision approaching a few thousand years, but also that each lithological cycle observed in southern Italy can be uniquely associated with a particular cycle in the sediments of the equatorial Pacific, a truly astonishing match across time and distance.
Lot2: two-stroke oil, motor oil 10W40, M10H2K motor oil, oil TAP 15V, M-8V oil, lithological -24, oil M-10DM.
Lithological correlation of the Lower Devonian in the eastern part of the Holy Cross Mountains.
By providing insight into lithological layers outside the immediate treatment zone, VSP results can improve earth models above depths normally logged by wireline tools," says Urbancic.