scholarly journals Reconstruction of a high-resolution late holocene arctic paleoclimate record from Colville River delta sediments.

2013 ◽  
Author(s):  
Kathryn Schreiner ◽  
Thomas Lowry
Keyword(s):  
High Resolution ◽  
Late Holocene ◽  
River Delta ◽  
Colville River ◽  
Delta Sediments

scholarly journals Three distinct Holocene intervals of stalagmite deposition and nondeposition revealed in NW Madagascar, and their paleoclimate implications

2017 ◽  
Vol 13 (12) ◽  
pp. 1771-1790 ◽  
Author(s):  
Ny Riavo Gilbertinie Voarintsoa ◽  
Loren Bruce Railsback ◽  
George Albert Brook ◽  
Lixin Wang ◽  
Gayatri Kathayat ◽  
...  
Keyword(s):  
Stable Isotopes ◽  
High Resolution ◽  
Late Holocene ◽  
Intertropical Convergence Zone ◽  
Convergence Zone ◽  
High Resolution Data ◽  
The Holocene ◽  
Middle Holocene ◽  
Resolution Data

Abstract. Petrographic features, mineralogy, and stable isotopes from two stalagmites, ANJB-2 and MAJ-5, respectively from Anjohibe and Anjokipoty caves, allow distinction of three intervals of the Holocene in NW Madagascar. The Malagasy early Holocene (between ca. 9.8 and 7.8 ka) and late Holocene (after ca. 1.6 ka) intervals (MEHI and MLHI, respectively) record evidence of stalagmite deposition. The Malagasy middle Holocene interval (MMHI, between ca. 7.8 and 1.6 ka) is marked by a depositional hiatus of ca. 6500 years. Deposition of these stalagmites indicates that the two caves were sufficiently supplied with water to allow stalagmite formation. This suggests that the MEHI and MLHI intervals may have been comparatively wet in NW Madagascar. In contrast, the long-term depositional hiatus during the MMHI implies it was relatively drier than the MEHI and the MLHI. The alternating wet–dry–wet conditions during the Holocene may have been linked to the long-term migrations of the Intertropical Convergence Zone (ITCZ). When the ITCZ's mean position is farther south, NW Madagascar experiences wetter conditions, such as during the MEHI and MLHI, and when it moves north, NW Madagascar climate becomes drier, such as during the MMHI. A similar wet–dry–wet succession during the Holocene has been reported in neighboring locations, such as southeastern Africa. Beyond these three subdivisions, the records also suggest wet conditions around the cold 8.2 ka event, suggesting a causal relationship. However, additional Southern Hemisphere high-resolution data will be needed to confirm this.

scholarly journals Late Holocene hydrology of Lake Maharlou, southwest Iran, inferred from high-resolution sedimentological and geochemical analyses

2018 ◽  
Vol 61 (1) ◽  
pp. 111-128 ◽  
Author(s):  
Elodie Brisset ◽  
Morteza Djamali ◽  
Edouard Bard ◽  
Daniel Borschneck ◽  
Emmanuel Gandouin ◽  
...  
Keyword(s):  
High Resolution ◽  
Late Holocene ◽  
Geochemical Analyses ◽  
Southwest Iran

Mid-to-late Holocene upper slope contourite deposits off Capo Vaticano (Mediterranean Sea): High-resolution record of contourite cyclicity, bottom current variability and sandy facies

2021 ◽  
Vol 431 ◽  
pp. 106372
Author(s):  
Eleonora Martorelli ◽  
Alessandro Bosman ◽  
Daniele Casalbore ◽  
Francesco Chiocci ◽  
Aida Maria Conte ◽  
...  
Keyword(s):  
High Resolution ◽  
Mediterranean Sea ◽  
Late Holocene ◽  
Bottom Current ◽  
Upper Slope
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