Ground water and surface water create a range of problems in lignite mining utilizing surface mining methods. In order to create a safe and economic mining environment, it is essential to carry out mining after dewatering the rock mass surrounding the lignite mines by advance dewatering techniques. This paper briefly describes the ground water regimes including pressure gradients associated wit...

The ~1.08 Ga anorogenic, A-type Pikes Peak batholith (Front Range, central Colorado) is dominated by coarsegrained, biotite±amphibole syenogranites and minor monzogranites, collectively referred to as Pikes Peak granite (PPG). The batholith is also host to numerous small, late-stage plutons that have been subdivided into two groups (e.g. Wobus, 1976. Studies in Colorado Field Geology, Colorado ...

Abstract Accurately predicting fuel blends' lower heating values (LHV) is crucial for optimizing a power plant. In this paper, we employ multiple artificial intelligence (AI) and machine learning‐based models the LHV of various blends. Coal two different ranks types biomass used in study. One was South African imported bituminous coal, other lignite thar coal extracted from Thar Block‐2 mine by...

A-type granites are typically formed in stable intra-plate, back-arc or postcollisional settings and characterized by highly ferroan potassic major element compositions, strong enrichment incompatible trace elements. Unlike I-, S- M-type granites, where the letters denote dominant source material (igneous, sedimentary mantle derived), there is no consensus on processes giving rise to magmas. In...

The Lalezar granitoids crop out within volcanic successions of the Urumieh-Dokhtar Magmatic Assemblage (UDMA). These granitoids have a range from gabbro-diorites to granites in composition. The mineral compositions of the most felsic rocks are characterized by the abundances of Na-plagioclase, quartz, alkali feldspar, biotite and hornblende. In the gabbro-diorite rocks, plagioclase (Ca-rich), h...

In this paper we i11trod11ce an example-based pa rserfor Chinese. One strong point of the parsers is its high reliability. We propose a formal definition for re/iability and derive from it }(, as a metric for the evaluation of parsers. [11 a row of experiments we try to identify some factors which support the reliabi/iry ofthe parser. lt is suggested thar thesefactors are i11depe11de11t of rite...