Jacek Pawlak , Helena Hercman , Michał Gąsiorowski , Petr Pruner , Marcin Błaszczyk , Paula Sierpień , Šárka Matoušková , Šimon Kdýr , Petr Schnabl , Nadja Zupan Hajna , Andrej Mihevc , Pavel Bosák
{"title":"在Račiška pečina洞穴的流石中记录的Matuyama/Brunhes磁反转(斯洛文尼亚)","authors":"Jacek Pawlak , Helena Hercman , Michał Gąsiorowski , Petr Pruner , Marcin Błaszczyk , Paula Sierpień , Šárka Matoušková , Šimon Kdýr , Petr Schnabl , Nadja Zupan Hajna , Andrej Mihevc , Pavel Bosák","doi":"10.1016/j.quaint.2023.05.002","DOIUrl":null,"url":null,"abstract":"<div><p><span>A flowstone section in the Račiška pečina Cave (Classical Karst, SW Slovenia) records multiple chronostratigraphic and palaeoclimatic proxies that can be correlated with other records on the global scale (Mediterranean region, Japan). Its upper part has an excellent record of the Matuyama/Brunhes (M/B) magnetic reversal. The M/B reversal zone, which is 6 mm in thickness, was detected by a high-resolution palaeomagnetic analysis of the sequence. An age model based on oxygen isotopic stratigraphy locates this quick transition in mid-MIS 19, between 777.9 and 777.2 ka, with the midpoint at 777.7 ka. The transition is marked by abrupt changes in stable isotopic compositions, trace element concentrations and flowstone fabrics that point to temperature and precipitation changes. Two distinct maxima in trace element concentrations at the beginning and the end of the M/B transition indicate two periods of higher precipitation, with increased washes of clay minerals into the cave. In addition, the stable isotopic (δ</span><sup>13</sup>C and δ<sup>18</sup><span>O) compositions indicate that significant cooling and high precipitation occurred during the M/B reversal within the generally warm MIS 19.</span></p></div>","PeriodicalId":49644,"journal":{"name":"Quaternary International","volume":null,"pages":null},"PeriodicalIF":1.9000,"publicationDate":"2024-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Matuyama/Brunhes magnetic reversal recorded in flowstone from the Račiška pečina Cave (Slovenia)\",\"authors\":\"Jacek Pawlak , Helena Hercman , Michał Gąsiorowski , Petr Pruner , Marcin Błaszczyk , Paula Sierpień , Šárka Matoušková , Šimon Kdýr , Petr Schnabl , Nadja Zupan Hajna , Andrej Mihevc , Pavel Bosák\",\"doi\":\"10.1016/j.quaint.2023.05.002\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p><span>A flowstone section in the Račiška pečina Cave (Classical Karst, SW Slovenia) records multiple chronostratigraphic and palaeoclimatic proxies that can be correlated with other records on the global scale (Mediterranean region, Japan). Its upper part has an excellent record of the Matuyama/Brunhes (M/B) magnetic reversal. The M/B reversal zone, which is 6 mm in thickness, was detected by a high-resolution palaeomagnetic analysis of the sequence. An age model based on oxygen isotopic stratigraphy locates this quick transition in mid-MIS 19, between 777.9 and 777.2 ka, with the midpoint at 777.7 ka. The transition is marked by abrupt changes in stable isotopic compositions, trace element concentrations and flowstone fabrics that point to temperature and precipitation changes. Two distinct maxima in trace element concentrations at the beginning and the end of the M/B transition indicate two periods of higher precipitation, with increased washes of clay minerals into the cave. In addition, the stable isotopic (δ</span><sup>13</sup>C and δ<sup>18</sup><span>O) compositions indicate that significant cooling and high precipitation occurred during the M/B reversal within the generally warm MIS 19.</span></p></div>\",\"PeriodicalId\":49644,\"journal\":{\"name\":\"Quaternary International\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":1.9000,\"publicationDate\":\"2024-03-20\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Quaternary International\",\"FirstCategoryId\":\"89\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S1040618223001416\",\"RegionNum\":3,\"RegionCategory\":\"地球科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"GEOGRAPHY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Quaternary International","FirstCategoryId":"89","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1040618223001416","RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"GEOGRAPHY, PHYSICAL","Score":null,"Total":0}
引用次数: 0
摘要
Račiška pečina 洞穴(斯洛文尼亚西南部经典喀斯特地貌)的一个流石断面记录了多种年代地层学和古气候代用指标,可与全球范围内(地中海地区、日本)的其他记录相互关联。其上部具有松山/布鲁内斯(M/B)磁反转的绝佳记录。通过对序列进行高分辨率古地磁分析,发现了厚度为 6 毫米的 M/B 逆转带。基于氧同位素地层学的年龄模型将这一快速过渡定位在介于 777.9 ka 和 777.2 ka 之间的 MIS 19 中期,中点为 777.7 ka。稳定同位素组成、微量元素浓度和流石结构的突然变化是这一过渡的标志,表明温度和降水发生了变化。痕量元素浓度在 M/B 转换初期和末期出现两个明显的最大值,表明两个时期降水量较高,冲入洞穴的粘土矿物增多。此外,稳定同位素(δ13C 和 δ18O)组成表明,在总体温暖的 MIS 19 中,M/B 转换期间出现了明显的降温和高降水。
Matuyama/Brunhes magnetic reversal recorded in flowstone from the Račiška pečina Cave (Slovenia)
A flowstone section in the Račiška pečina Cave (Classical Karst, SW Slovenia) records multiple chronostratigraphic and palaeoclimatic proxies that can be correlated with other records on the global scale (Mediterranean region, Japan). Its upper part has an excellent record of the Matuyama/Brunhes (M/B) magnetic reversal. The M/B reversal zone, which is 6 mm in thickness, was detected by a high-resolution palaeomagnetic analysis of the sequence. An age model based on oxygen isotopic stratigraphy locates this quick transition in mid-MIS 19, between 777.9 and 777.2 ka, with the midpoint at 777.7 ka. The transition is marked by abrupt changes in stable isotopic compositions, trace element concentrations and flowstone fabrics that point to temperature and precipitation changes. Two distinct maxima in trace element concentrations at the beginning and the end of the M/B transition indicate two periods of higher precipitation, with increased washes of clay minerals into the cave. In addition, the stable isotopic (δ13C and δ18O) compositions indicate that significant cooling and high precipitation occurred during the M/B reversal within the generally warm MIS 19.
期刊介绍:
Quaternary International is the official journal of the International Union for Quaternary Research. The objectives are to publish a high quality scientific journal under the auspices of the premier Quaternary association that reflects the interdisciplinary nature of INQUA and records recent advances in Quaternary science that appeal to a wide audience.
This series will encompass all the full spectrum of the physical and natural sciences that are commonly employed in solving Quaternary problems. The policy is to publish peer refereed collected research papers from symposia, workshops and meetings sponsored by INQUA. In addition, other organizations may request publication of their collected works pertaining to the Quaternary.