GLOBAL STRATOTYPE SECTION
; ICE-CORE
; CLIMATE-CHANGE
; QUATERNARY SYSTEM/PERIOD
; GREENLAND TEMPERATURE
; COLD EVENT
; ISOTOPE
; STALAGMITES
; RECORDS
; STRATIGRAPHY
WOS学科分类:
Geosciences, Multidisciplinary
WOS研究方向:
Geology
英文摘要:
The Holocene Series/Epoch is the most recent series/epoch in the geological timescale, spanning the interval from 11,700 yr to the present day. Together with the subadjacent Pleistocene, it comprises the Quaternary System/Period. The Holocene record contains diverse geomorphological, biological, climatological and archaeological evidence, within sequences that are often continuous and extremely well-preserved at decadal, annual and even seasonal resolution. As a consequence, the Holocene is perhaps the most intensively-studied series/epoch within the entire Geological Time Scale. Yet until recently little attention had been paid to a formal subdivision of the Holocene. Here we describe an initiative by the Subcommission on Quaternary Stratigraphy (SQS) of the International Commission on Stratigraphy (ICS) to develop a formal stratigraphical subdivision of the Holocene, with three new stages/ages, two underpinned by Global Boundary Strato-type Sections and Points (GSSPs in an ice core, and a third in a speleothem. These stages/ages are defined together with their equivalent subseries/subepochs. The new stages/ages are the Greenlandian with its GSSP in the Greenland NGRIP2 ice core and dated at 11,700 yr b2k (before 2000 CE); the Northgrippian with its GSSP in the Greenland NGRIP1 ice core and dated to 8236 yr b2k; and the Meghalayan, with its GSSP in a speleothem from Mawmluh Cave, northeastern India, with a date of 4250 yr b2k. This subdivision was formally ratified by the Executive Committee of the International Union of Geological Sciences (IUGS) on 14th June 2018.
1.Univ Wales, Sch Archaeol Hist & Anthropol, Trinity St David, Lampeter SA48 7EJ, Dyfed, Wales 2.Aberystwyth Univ, Dept Geog & Earth Sci, Aberystwyth SY23 3DB, Dyfed, Wales 3.Univ Cambridge, Scott Polar Res Inst, Lensfield Rd, Cambridge CB1 3ER, England 4.Brock Univ, Dept Earth Sci, 1812 Sir Isaac Brock Way, St Catharines, ON LS2 3A1, Canada 5.Univ Illinois, Dept Earth & Environm Sci, Chicago, IL 60607 USA 6.Lund Univ, Dept Geol, Quaternary Sci, Solveg 12, SE-22362 Lund, Sweden 7.Xi An Jiao Tong Univ, Inst Global Change, Xian 710049, Shaanxi, Peoples R China 8.Univ Minnesota, Dept Earth Sci, Minneapolis, MN 55455 USA 9.Univ New Brunswick, Dept Biol, Fredericton, NB E3B 5A3, Canada 10.Univ Ottawa, Dept Earth Sci, Ottawa, ON K1N 615, Canada 11.Univ Copenhagen, Niels Bohr Inst, Ctr Ice & Climate, Juliane Maries Vej 30, DK-2100 Copenhagen, Denmark 12.Univ Durham, Dept Geog, Durham DH1 3LE, England 13.Royal Holloway Univ London, Dept Geog, Egham TW20 0EX, Surrey, England 14.Victoria Univ Wellington, Sch Geog Environm & Earth Sci, Wellington 6012, New Zealand 15.Yale Univ, Sch Forestry & Environm Studies, New Haven, CT 06511 USA
Recommended Citation:
Walker, Mike,Gibbard, Phil,Head, Martin J.,et al. Formal Subdivision of the Holocene Series/Epoch: A Summary[J]. JOURNAL OF THE GEOLOGICAL SOCIETY OF INDIA,2019-01-01,93(2):135-141