Shastra (à¤¶à¤¾à¤¸à¥à¤¤à¥à¤°, IAST: ÅÄstra, IPA: ) is a Sanskrit word that means precept, rules, manual, compendium, book or treatise in a general sense. The word is generally used as a suffix in the Indian literature context, for technical or specialized knowledge in a defined area of practice.
Ice calving. Ice calving, also known as glacier calving or iceberg calving, is the breaking of ice chunks from the edge of a glacier. It is a form of ice ablation or ice disruption and is normally caused by the glacier expanding. It is the sudden release and breaking away of a mass of ice from a glacier, iceberg, ice front, ice shelf, or crevasse.
Glaciers And Glaciation By definition a glacier is a mass of ice composed of compacted and recrystallized snow that flows under its own weight. This makes glaciers very effective agents of erosion, transportation and deposition of sediment. The two types of glaciers are Valley or Alpine glaciers Continental glaciers.The difference between them is where they flow. Valley glaciers flow in mountain valleys from high to low elevations. Continental glaciers or ice sheets flow over vast unconfined land areas.Valley glaciers are present at high altitude in mountain valleys of Alaska, the Italian Alps and New Zealand.lacial Drift. All sediment deposited by a glacier whether its a valley glacier or continental ice sheet, is called glacial drift. Till: unstratified sediment deposited directly by glacial ice. It is poorly sorted & contains large boulder, pebbles clay-sized particles.