Correlation of the Eemian (interglacial) Stage and the deep-sea oxygen-isotope stratigraphy

Nature ◽  
1979 ◽  
Vol 277 (5693) ◽  
pp. 189-192 ◽  
Author(s):  
Jan Mangerud ◽  
Eivind Sønstegaard ◽  
Hans-Petter Sejrup
1986 ◽  
Vol 1 (2) ◽  
pp. 137-162 ◽  
Author(s):  
Warren L. Prell ◽  
John Imbrie ◽  
Douglas G. Martinson ◽  
Joseph J. Morley ◽  
Nicklas G. Pisias ◽  
...  

1987 ◽  
Vol 27 (1) ◽  
pp. 1-29 ◽  
Author(s):  
Douglas G. Martinson ◽  
Nicklas G. Pisias ◽  
James D. Hays ◽  
John Imbrie ◽  
Theodore C. Moore ◽  
...  

AbstractUsing the concept of “orbital tuning”, a continuous, high-resolution deep-sea chronostratigraphy has been developed spanning the last 300,000 yr. The chronology is developed using a stacked oxygen-isotope stratigraphy and four different orbital tuning approaches, each of which is based upon a different assumption concerning the response of the orbital signal recorded in the data. Each approach yields a separate chronology. The error measured by the standard deviation about the average of these four results (which represents the “best” chronology) has an average magnitude of only 2500 yr. This small value indicates that the chronology produced is insensitive to the specific orbital tuning technique used. Excellent convergence between chronologies developed using each of five different paleoclimatological indicators (from a single core) is also obtained. The resultant chronology is also insensitive to the specific indicator used. The error associated with each tuning approach is estimated independently and propagated through to the average result. The resulting error estimate is independent of that associated with the degree of convergence and has an average magnitude of 3500 yr, in excellent agreement with the 2500-yr estimate. Transfer of the final chronology to the stacked record leads to an estimated error of ±1500 yr. Thus the final chronology has an average error of ±5000 yr.


2021 ◽  
Vol 48 (1) ◽  
pp. 31-45
Author(s):  
P. Sierpień ◽  
J. Pawlak ◽  
H. Hercman ◽  
P. Pruner ◽  
N. Zupan Hajna ◽  
...  

Abstract Establishing a chronology of events is a critical step in reconstructing the palaeoclimate and it is important for all types of environmental records, including speleothems. Here, we analysed a unique series of flowstones deposited between 3.2 Ma (marine isotope stage (MIS) Km3) and 0.08 Ma (MIS 5). The studied flowstones are located in a classic karstic environment, the Račiška Pečina Cave in south-western Slovenia. Further, a detailed chronology of events was constructed based on oxygen isotope stratigraphy (OIS), combined with magnetostratigraphy and U-series dating. Two curves were selected as reference records where the LR04 record was used as the global curve and a Mediterranean record was used as the regional curve. The Račiška Pečina profile was divided into two segments separated by a principal disconformity. The lower segment correlated better with the regional Mediterranean curve, while the upper segment was with the global LR04 curve. These findings suggest that the main factors controlling environmental conditions in the cave area changed between 3.2 and 0.8 million years ago.


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