Updated Quaternary Chronostratigraphy

Öz

With new developing, the span of Quaternary was defined as 1.8 Ma at the 27nd International Geological Congress held on 1984 in Moscow. In spite of discussion on Pliocene-Pleistocene boundary and span of Quaternary, this defining has been accepted in general. One of the hot topics discussed at the 32nd International Geological Congress held in Florence (Italy) was the span of the Quaternary. This subject comprising both recognition of the Quaternary as a formal chronostratigraphic/geochronological unit and lower boundary of the Quaternary coincide with the base of the Gelasian Stage (2.588 Ma) was discussed in general session of the International Commission on Stratigraphy (ICS). Finally, the request of the International Commission on Stratigraphy (ICS) on 02 June 2009 has been ratificated by Executive Committee of the International Union of Geological Sciences (IUGS) on 29 June 2009 as The Pleistocene is a Series/Epoch with its base coinciding with the base of the Gelasian Stage/Age and the Pleistocene and Quaternary is that their base would be moved from 1.8 Ma to 2.588 Ma.

Keywords: Quaternary, Pliocene-Pleistocene boundary, 2.588 milyon year

Anahtar Kelimeler

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Yenilenen Kuaterner Kronostratigrafisi

Öz

1984 yılında Moskova’da yapılan Uluslararası jeoloji kongresinde Kuaterner devri son düzenlemeler ile birlikte 1,8 milyon yıl olarak belirlenmiştir. Pliosen- Pleistosen sınırı ve Kuaterner devrini tanımlayan bu karar tartışılmasına rağmen genel olarak kabul görmüştür. Floransa’da (Italya) yapılan 32. Uluslararası Jeoloji Kongresinde en fazla tartışmaların yapıldığı konulardan biri Kuaterner’in süresi konusu olmuştur. Uluslararası Stratigrafi Komisyonunun (ICS) genel oturumunda hem Kuaterner’in kronostratigrafik/jeokronolojik birim olarak tanınması ve hem de Kuaterner’in Gelasian katından (2,588 Milyon yıl) başlatılmasını kapsayan bu konu tartışılmıştır. Sonuç olarak; Uluslararası Stratigrafi Komisyonunun (ICS), Pleistosen’in Gelasian katını da kapsayan bir devir olduğu, Pleistosen ve Kuaterner’in başlangıcının 1,8 milyon yıldan 2,588 milyon yıla çekilmesi kararına ait 02 Haziran 2009 tarihli talebi, Uluslararası Jeolojik Bilimler Birliği (IUGS) Yönetim Kurulu tarafından 29 Haziran 2009 tarihinde onaylanmıştır.

Anahtar Kelimeler: Kuaterner, Pliosen-Pleistosen sınırı, 2,588 milyon yıl

Anahtar Kelimeler

• Kuaterner, Pliosen-Pleistosen sınırı, 2,588 milyon yıl

Kaynakça

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47. Yazar hakkında Doç. Dr. Hüseyin Turoğlu
48. İstanbul Üniversitesi Edebiyat Fakültesi Coğrafya Bölümü
49. Laleli/İstanbul
50. Uygulamalı jeomorfoloji, afetler ve afet yönetimi,
51. Kuaterner coğrafyası, arkeo-coğrafya, planlama ve arazi
52. sürdürmektedir. Coğrafi Bilgi Sistemleri ve Uzaktan
53. Algılama Teknolojileri araştırmacının özel ilgi alanı
54. olup, çalışmalarında bu konunun uygulamalarına yer vermektedir. çalışmalarını