In aeolian sandy grass shoal catchment areas that rely heavily on groundwater, mining-induced geological deformation and aquifer drainage are likely to cause irreversible damage natural groundwater systems affect the original circulation of thus threatening ecological environment. This study aimed predict impact level decline vegetation growth in Hailiutu River Basin (HRB), which is a coal-fiel...

The aim was to design a MATLAB program calculate the phreatic surface of multi-well system and present graphical shape water table drawdown induced by extraction. Dupuit’s assumption is base for representing dewatering curve. will offer volume be extracted, total number wells, spacing between them as well expected settlement soil surrounding foundation pit. arrangement required in execution wor...

A small, protected karstic feature exposed in a limestone quarry in Bermuda preserved abundant sedimentary and biogenic materials documenting a transgressive phase, still-stand, and regressive phase of a sea-level in excess of 21.3 m above present during Marine Isotope Stage (MIS) 11 (400 ka) as determined by U/Th dating and amino acid racemization. Cobbles and marine sediments deposited during...