Precise correlation of Miocene to early pleistocene in Japanese Islands by means of widespread tephra beds

通过广泛分布的火山灰层精确对比日本列岛的中新世与早更新世

• 批准号: 12640440
• 负责人: KUROKAWA Katsuki
• 金额: $ 2.37万
• 依托单位: NIIGATA UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2000
• 资助国家: 日本
• 起止时间: 2000 至 2002
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-12640440/
• 关键词: tephra bed; correlation; Miocene; SK110 Tephra Bed; kd25 Tephra Bed; Znp Tephra Bed; identical time surface; Niigata region; 下部更新統; 広域テフラ; 鮮新世; 更新世前期; 魚沼層群; Kd8; Kd18; 新津丘陵; 房総半島; SK110火山灰層; SK100火山灰層; UN火山灰層

The Miocene to early Pleistocene tephra marker beds and their widearea correlation were examined in the Japanese Islands, especially based on the Niigata region, central Japan. The early Pleistocene SK110 and SK100 Tephra Beds in the Uonuna Group in the Niigata region were corralated to the Kd25 and Kd24 Tephra Beds in the Kiwada Formation in the Boso Peninsula. The late Pliocene Thw-3 and Ftj Tephra Beds in the Nishiyama Formation in the Niigata region were correlated to the YT4 and UN Tephra Beds in the Himi Group around Toyama Bay respectively. Furthermore, correlation of the Miocene tephra beds were attempted, which have been scarcely successful. Namely, the Miocene Kdg, Gtm. Skhq and Jng Tephra Beds in the Uchisugawa Formation in Shibata City can be correlated to the Sng, Stm. Tmhq and Snsg Tephra Beds in the Nomura Formation in the Tsugawa area respectively. These results will be made in use for not only the exact time marker in the stratigraphic records, but also for the further research of environmental history.

在日本群岛，尤其是基于日本中部的尼加塔地区，对中新世至更新世早期的Tephra标记床及其质相关性进行了检查。 Niigata地区Uonuna组的早期更新世SK110和SK100 TEPHRA床被围绕在Boso Peninsula的Kiwada组中的KD25和KD24 Tephra床。 Niigata地区Nishiyama组中的上新世Thw-3和Ftj Tephra床分别与Toyama Bay附近的Himi Group的YT4和Un Tephra床相关。此外，尝试了中新世tephra床的相关性，这几乎是成功的。即，中新世KDG，GTM。北田市Uchisugawa地层中的Skhq和Jng Tephra床可以与SNG，STM相关。 TMHQ和SNSG Tephra床分别在Tsugawa地区的Nomura组中。这些结果将不仅用于地层记录中的确切时间标记，而且还将用于对环境历史的进一步研究。

项目成果

Sakai, H. and Kurokawa, K.: "Correlation of the early Pleistocene SK110 and SK100 ash beds in the Niigata region to the Kd25 and Kd24 ash beds in Boso Peninshula, central Japan"Earth Science (Chikyu Kagaku). 56-4. 217-230 (2002)

Sakai, H. 和 Kurokawa, K.：“新泻地区早更新世 SK110 和 SK100 灰层与日本中部房总半岛 Kd25 和 Kd24 灰层的相关性”地球科学 (Chikyu Kagaku)。

黒川勝己: "新津丘陵〜加茂市周辺の平層に見出されたSK110およびSK100火山灰層"地球科学. 54巻・5号. 342-347 (2000)

Katsumi Kurokawa：“在 Niitsu Hills 和 Kamo 市周围的平坦层中发现的 SK110 和 SK100 火山灰层”《地球科学》第 54 卷，第 5 期。342-347（2000 年）。

Kurokawa, K. and Kanke, K.: "Stratgraphic section of the Znp Tephra Bed : a pliocene submarine pumiceous gravity flow deposit in Niigata region, central Japan"Mem. Fac. Educ. And Human Sci.. 5-2. 11-25 (2003)

Kurokawa, K. 和 Kanke, K.：“Znp Tephra 层的地层剖面：日本中部新泻地区的上新世海底浮石重力流沉积物”Mem。

石綿正志: "群馬県富岡層群の馬場凝灰岩層とその対比-とくに黒雲母の化学組成について-"群馬県立自然史博物館研究報告. 5号. 69-76 (2001)

石渡正史：“群马县富冈群马场凝灰岩的形成及其比较——特别是黑云母的化学成分——”群马县自然历史博物馆研究报告第5.69-76号（2001年）。

Kurokawa Katsuki: "Tephra marker beds and their correlation in the Higashiyama Halls, east of Nagaoka City(Part2) : defection of the 2np and tsc Thephra Beds in Pliocene series and their significan"新潟大教育人間科学部紀要. 5・1. 41-68 (2002)

黑川克树：“长冈市东部东山厅的Tephra标记床及其相关性（第二部分）：上新世系列2np和tsc Thephra床的叛逃及其意义”新泻大学教育与人文科学学院通报5・1。41-68（2002）