Chemical weathering in the Krishna Basin and Western Ghats of the Deccan Traps, India: Rates of basalt weathering and their controls

Evaluating pollution potential of leachate from landfill site, from the Pune metropolitan city and its impact on shallow basaltic aquifers

“…While the groundwater in DVP is of Ca + Mg-HCO 3 type (Pawar et al 1982), the monsoon rainwater is charged with chloride, sulfate, nitrate, sodium, calcium, magnesium, and negligible amounts of bicarbonates (Das et al 2004). The rainwater inputs to the groundwater were deducted from the geochemical data obtained, and corrected records were used for the plots.…”

Fine-Scale Variations of Near-Surface-Temperature Lapse Rates in the High Drakensberg Escarpment, South Africa: Environmental Implications

“…Bioclimate models used in complex mountainous terrain are sometimes considered too course to accommodate projected geographic shifts in species, as in most instances they are unable to account for topographically induced trends in temperature, and thus a call has been made for employing statistical downscaling techniques to better understand local patterns of climate and biosystem changes (Nogués-Bravo et al, 2007;Holden et al, 2011). Further, given that several of the world's major escarpments consist of basalt, which weathers faster than other silicates, it has been argued that they significantly influence the atmospheric CO 2 budget over long temporal scales (Das et al, 2005). Surface (and associated rock) temperature trends along such escarpments are fundamental to controlling rates and intensity of weathering (Grab, 2007), and thus any future projections of weathering rates that influence CO 2 budgets and rates of landscape evolution need to consider the fine-scale climate trends.…”

Sedimentation record in the Konkan–Kerala Basin: implications for the evolution of the Western Ghats and the Western Indian passive margin

“…The porosity coefficient (c) is a constant which describes the gradient of the porosity-depth curve (0.39 for shaley sandstone). Equation however, dissolved calcium is difficult to quantify and there are only approximate present day estimates available for Western India (Dessert et al, 2001;Das et al, 2005;Prasad & Ramanatran, 2005). Sediment derived from the conjugate margins (Seychelles or Madagascar) likewise could have contributed sediment to the Konkan-Kerala basin.…”