Sentence examples for alteration index from inspiring English sources

Drillability, specific energy, resistance to drilling alteration index and several other indices have been proposed to estimate the rock capability to fail (inversely proportional to hardness).

Specific energy and resistance to drilling reveal a linear correlation with DRI, while alteration index has a polynomial correlation with DRI.

Specific energy, resistance to drilling and alteration index can be calculated for carbonate rocks using these correlations with DRI measurements (without performing ROP tests).

The chemical alteration index ranged from 52.96 to 65.5 %, an indication of a moderate weathering at the source area before deposition.

Specific energy, resistance to drilling and alteration index are the indices that apply Rate of Penetration (ROP) and operational variables (weight on bit and rotary speed) to quantify the rock hardness.

Data sets (see Additional file 1 for detailed data and sources) were chosen based upon the availability of multiple measurements, data required to calculate CIA (chemical alteration index) values, details of analytical methods, and lack of high-grade metamorphism.

Gamma-ray spectrometry is one of the most cost-effective prospecting methods for investigating anomalies in potassium, uranium, thorium and alteration indexes associated with hydrothermal and radioactive ore deposits.

The Th and TC have stronger correlations with elevation than K and U. Thus, K and U show relative local enrichment in low-lying areas, whilst Th and TC do not; alteration indices proposed to improve the discrimination of potassic alteration also generate false anomalies, caused by local enrichment of the K and U in low-lying areas.

The weathering indices Chemical Index of Alteration (CIA), Plagioclase Index of Alteration (PIA) and Weathering Index of Parker WIPP) determined for five soils on all geological formations, suggested that in contrast to expectation the topsoil (0 10 cm) appeared to be the least and the subsoil (50 70 cm) and saprolite (isomorphically weathered rock in the soil matrix) the most weathered.

The murine model used in this study is a relevant model of diet-induced IR as evidenced by severe alterations in indices of glucose homeostasis and development of characteristic visceral adipose inflammation and infiltration by Ly6Chi monocytes.

At baseline, 38% had hepatic steatosis based on %HFF ≥5.5% with alterations in indices of insulin sensitivity and secretion.