Data Report: Late Neogene biogenic opal data for Leg 167 sites on the California margin

2000 ◽  
Author(s):  
T.R. Janecek
Keyword(s):  
Biogenic Opal ◽  
Opal Data ◽  
Late Neogene

scholarly journals Biogenic Opal and Carbonate Accumulation Rates in the Subantarctic South Atlantic: The Late Neogene of Meteor Rise Site 704

1991 ◽  
Author(s):  
P.N. Froelich ◽  
P.N. Malone ◽  
D.A. Hodell ◽  
P.F. Ciesielski ◽  
D.A. Warnke ◽  
...  
Keyword(s):  
South Atlantic ◽  
Accumulation Rates ◽  
Biogenic Opal ◽  
Late Neogene

BIOGENIC OPAL PRODUCTION IN THE AGULHAS CURRENT AND ITS CONNECTION TO ARIDIFICATION IN SOUTH AFRICA DURING THE MID-PLEISTOCENE

2018 ◽  
Author(s):  
Eduardo Ruiz Marin ◽  
◽  
Jason Coenen ◽  
Reed P. Scherer ◽  
Nathan D. Stansell ◽  
...  
Keyword(s):  
South Africa ◽  
Agulhas Current ◽  
Biogenic Opal

scholarly journals Geomorphological and Geochronological Analysis Applied to the Quaternary Landscape Evolution of the Yeltes River (Salamanca, Spain)

2020 ◽  
Vol 12 (19) ◽  
pp. 7869 ◽  
Author(s):  
Iván Martín-Martín ◽  
Pablo-Gabriel Silva ◽  
Antonio Martínez-Graña ◽  
Javier Elez
Keyword(s):  
Transfer Functions ◽  
Sedimentary Basins ◽  
Central Spain ◽  
Geomorphological Mapping ◽  
Fluvial Terraces ◽  
Digital Elevation ◽  
Late Neogene ◽  
Climate Evolution ◽  
Reported Data ◽  
Geomorphological Evolution

This paper aims to study the Quaternary geomorphological evolution of the Yeltes river-valley (Duero Basin, Central Spain) primarily based on the study of the Late Neogene piedmont dissected by the river and its Quaternary terrace sequence, since fluvial terraces are excellent archives to study the landscape and climate evolution during this period. Detailed geomorphological mapping implemented in GIS-based digital elevation models was used to the further applications of existing fluvial chronofunctions (relative terrace height-age transfer functions) to establish a numerical geochronology to the sequence of fluvial terraces in the zone. The obtained theoretical ages points to an onset of fluvial incision in the zone after 2.0–2.5 Myr ago, with the dissection of the “Raña surface” (a Gelasian alluvial piedmont widely developed in Central Spain). The obtained terrace ages coincide, in most cases, with warm isotopic stages (MIS) or mainly with the transit of cold to warm MIS. Additionally, this study suggests that the full connectivity of the Yeltes drainage (Ciudad Rodrigo Basin) with the Atlantic drainage was not completely effective until MIS 9 (c. 0.29 Myr). The new reported data allows for the exploration of the timing and processes involved in the capture of inland sedimentary basins (Ciudad Rodrigo, Duero basins) by the Atlantic drainage during the early Quaternary.

Biomarker records of late Neogene changes in northeast African vegetation

Geology ◽  
2005 ◽  
Vol 33 (12) ◽  
pp. 977 ◽  
Author(s):  
Sarah J. Feakins ◽  
Peter B. deMenocal ◽  
Timothy I. Eglinton
Keyword(s):  
Late Neogene
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