Local caves protect the country’s limestone caves.
SHILLONG: Krem Mawmluh of Sohra is a cave studied by a team of California geologists that eventually led to the new geological era ‘Meghalayan Age’, related to the dry period of 4,200 years ago in Earth’s history.
Local detector Brian D. Kharpran Daly accompanied scientists from California to Krem Mawmluh on Thursday to tell the Shillong Times that the first scientists and researchers led by Ashish Sinha of California studied the cave in 2003, and later researcher Sebastian Breitenbach joined team.
The confirmation of the “Megalayan era” was after the analysis of the stalagmites of Krem Mawmluh.
“The analysis of stalagmites in the caves can be determined at different times, and the study of stalagmites at Krem Mawmluh led to the creation of the new Megara era,” he said.
The study revealed a period of drought that began 4,200 years ago and lasted for 200 years, affecting many countries.
The drought has led to the collapse of civilization and human migration in Egypt, Greece, Syria, Palestine, Mesopotamia, the Indus Valley and the Yangtze River. Evidence of 4,200 climate events found.
Focus on damage to cave
Through the study of the cave, Daley is very happy to know Meghalaya. However, he urged the authorities to protect the caves because limestone mining affected the fragile cave system.
Dali said that Krem Mawmluh is also affected by mining limestone and can be used in Mawmluh Cherra Cements Limited.
PTI added from London that the new phase in the history of the earth was defined as the ‘Megara era’, which began 4,200 years ago and experienced sudden droughts and cooling on a global scale.
The collection of stars, including a Crazy Village Decoration Roller in the Caribbean, in the intergovernmental group, helped to identify the smallest climatic events in the Earth’s history. The agriculture-based society that developed in several regions after the last ice age was severely affected by the 200-year climate event.
After years of research, the late Holocene Megalarian era was approved as the latest unit of geological time scale.
The other two ages – the Holocene Central North and the Early Holocene Greenland era – were defined in climate events of approximately 8,300 and 11,700 years ago, respectively, and were also approved.
These three eras include the Holocene era, which represents the time since the end of the last ice age and all seven continents.
Stanley Finney, professor and secretary general of Long Beach State University in the United States, said that the Megalarian era is unique in many intervals on the geological time scale because its beginning coincides with global cultural events generated by global climate events. The International Union of Geological Sciences (IUGS) is in France.
The International Stratigraphic Committee responsible for standardizing geological time-scales approved the definition of the beginning of the youngest unit of geological time-scale based on the time of the event. The committee then forwarded the proposals to their parent organization, IUGS, for consideration, and the IUGS Executive Committee voted unanimously to approve the proposals.
The geological time-scale units are based on sedimentary formations that accumulate over time, including sediment types, fossils and chemical isotopes, recording the passage of time and the physical and biological events that produce them.
The three new eras of the Holocene era are represented by a large number of sediments that are found throughout the seabed, lake bottoms, glaciers, and calcite layers in stalactites and stalagmites. The age-based separation of the sedimentary strata is called the stage, and the three new stages of the hierarchy together form the Holocene series.
The specific levels of the Greenland ice nucleus and the Greenland ice nucleus define the lower bounds of Greenland and Northern Gripping. The lower boundary of the Meghalayan stage defines a specific level in a cave of stalagmites in northeastern India. Ice sculptures and stalagmites have been identified as international geological standards and are being safeguarded for further study.
The decision to identify these new phases of the Holocene series and the three new corresponding ages of the Holocene era allows for the renewal of the International Age Stratigraphic Map, which depicts a timeline of the Earth’s complete geological history.