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SHILLONG: Krem Mawmluh in Sohra was the cave studied by the team of California geologists that eventually resulted in the new geological time 'Meghalayan Age', linked to a 4,200 year drought in the history of the Earth. [19459003LespermophilelocalBrianDKharpranDalywhoaccompaniedCalifornia'sKremMawmluhadeclientedbyShillongTimesthatthefirstgroupofscientistsandresearchersledbyAshishSinhadeCaliforniawasstudiedin2003andwhosearcherSebastianBreitenbacharejoint
The confirmation of & # 39; Meghalayan Age & # 39; after analysis of the stalagmites of Krem Mawmluh.
"The analysis of stalagmite in caves can identify different periods and the study of stalagmite in Krem Mawmluh resulted in the new Meghalayan age.", He said.
The study revealed the drought that began 4200 years ago and lasted 200 years and affected many countries
.The collapse of civilizations and human migrations in Egypt, in Greece, Syria, Palestine, Mesopotamia, the Indus Valley and the Yangtze River Valley Evidence of the 4200-year-old weather event has been found in all seven continents.
Concern over the damage
to the caves
Daly is pleased with the recognition of Meghalaya through the study of the cave.He, however, urged the authorities to protect the caves because the limestone extraction affected the cave system, which is fragile.
Daly said that Krem Mawmluh is also affected by limestone mining for Mawmluh Cherra Cements Limited. London adds: The new phase of Earth's history defined as "Meghalayan Age" that began 4200 years ago has seen a steep mega-drought and cooling in the world.
Sediments collected by an international team of researchers, including those from a stalagmite cave in Meghalaya helped define the smallest climatic event in the history of the Earth. Agricultural societies, which developed in several regions after the end of the last ice age, were hard hit by the 200-year-old climatic event
The age of the Holocene meghalayan late has been ratified as the most recent unit of the geological time scale.
) Two other ages – middle – northern Holocene age and early Holocene Greenland age with defined beginnings during the climatic events that occurred approximately 8,300 years ago and 11,700 respectively. years, were also approved
. The three ages include the Holocene epoch, which represents the time elapsed since the end of the last ice age.
The megalayan era is unique among the many intervals of the geological time scale in that its beginning coincides with a world cultural event produced by Stanley Finney, a professor at the University of New York. State of Long Beach in the United States and Secretary General of the International Union of Geological Sciences (UISG) in France. 003] The International Stratigraphy Commission, responsible for the standardization of the geological time scale, has approved the definition of the beginning of the youngest unit of the geological time scale according to the timing of this event. The Commission then forwarded these proposals to its parent body, UISG, for review, and the IUGS Executive Committee voted unanimously to ratify them.
The units of the Geological Scale are based on sedimentary strata accumulated over time. the types of sediments, fossils and chemical isotopes that record the passage of time and the physical and biological events that produced them.
The three new Holocene ages are represented by a wealth of accumulated sediment in the marine world. on the lake bottoms, in the form of glacial ice, and in the form of calcite layers in stalactites and stalagmites. These intervals of sedimentary strata on which ages are based are called stages, and together the strata of three new stages constitute the Holocene series.
The lower limit of the Greenland and North Grivois stages is defined at specific levels in the Greenland ice. nuclei. The lower limit of the Meghalayan stadium is set at a specific level in a stalagmite cave in northeastern India. Ice cores and stalagmite are now identified as international geostandards and have been placed in protected archives for further study.
The decision to define these new stages of the Holocene series and therefore the three new corresponding ages of the Holocene epoch. allows an update of the international chronostratigraphic chart, which represents the calendar of the complete geological history of the Earth.
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