Results 61 to 70 of about 913 (184)

The Early Miocene Critical Zone at Karungu, Western Kenya: An Equatorial, Open Habitat with Few Primate Remains

Frontiers in Earth Science, 2017
Early Miocene outcrops near Karungu, Western Kenya, preserve a range of fluvio-lacustrine, lowland landscapes that contain abundant fossils of terrestrial and aquatic vertebrates.
William E. Lukens, Thomas Lehmann, Daniel J. Peppe, David L. Fox, Steven G. Driese, Kieran P. McNulty   +5 more
doaj   +1 more source

Mineralogical, geochemical and micromorphological evaluation of the Plio-Quaternary paleosols and calcretes from Karahamzall, Ankara (Central Turkey)

Geologica Carpathica, 2014
We present the mineralogical, micromorphological, and geochemical characteristics of the paleosols and their carbonates from Karahamzall, Ankara (Central Turkey).
Küçükuysal Ceren, Kapur Selim
doaj   +1 more source

Using Soil Stratigraphy and Tephrochronology to Understand the Origin, Age, and Classification of a Unique Late Quaternary Tephra-Derived Ultisol in Aotearoa New Zealand

Quaternary, 2019
In this article, I show how an Ultisol, representative of a globally-important group of soils with clay-rich subsoils, low base saturation, and low fertility, in the central Waikato region in northern North Island, can be evaluated using soil ...
David J. Lowe
doaj   +1 more source

Continental hydroclimate during the late Paleocene-early Eocene in the central Rockies: insights from sedimentological and geochemical records preserved in the greater Green River Basin, southwestern Wyoming, U.S.A.

Frontiers in Earth Science
The late Paleocene to early Eocene (LPEE, ∼59–50 Ma) greenhouse condition is the most recent geologic analogue for future climate change induced by increased atmospheric CO2 partial pressure (pCO2).
Min Gao, Min Gao, Min Gao, Majie Fan, Guangsheng Zhuang, Domenico Chiarella   +5 more
doaj   +1 more source

Mechanical response of deep circular shaft supported by steel frame and sprayed concrete in loess-paleosol sequence: A case study

Case Studies in Construction Materials
Loess has a large pore structure and well-developed vertical joints, belonging to a strong structural soil layer with good self-supporting properties. Generally, the actual lateral pressure exerted on underground structures is relatively small and its ...
Jiawei Kang, Guohua Deng, Shengjun Shao, Liqin Wang   +3 more
doaj   +1 more source

Archean (3.3 Ga) paleosols and paleoenvironments of Western Australia. [PDF]

PLoS One, 2023
Retallack GJ, Schmitz MD.
europepmc   +1 more source

Glacial‐Interglacial Climate Cycles of Atmospheric Hg Deposition: Insights From Hg Isotopes in Loess‐Paleosol Sequences on the Chinese Loess Plateau

Geophysical Research Letters
As a highly volatile heavy metal, Hg is transported over long distances in the atmosphere and enters global ecosystems via Hg(II) wet deposition and Hg(0) dry deposition.
Wen Xue, Zhidong Xu, Xing Cheng, Longfei Gou, Maoyong He, Zhangdong Jin, Miling Li, Linchuan Fang, Runsheng Yin   +8 more
doaj   +1 more source

Accumulation of radiocarbon in ancient landscapes: A small but significant input of unknown origin. [PDF]

Sci Rep, 2023
Broz A, Aguilar J, Xu X, Silva LCR.
europepmc   +1 more source

Editorial: The Role of the Paleo-Critical Zone in Shaping Quaternary Hominin Evolution

Frontiers in Earth Science, 2019
Gary E. Stinchcomb, Gary E. Stinchcomb, Emily J. Beverly   +2 more
doaj   +1 more source

Une séquence du Pléistocène moyen et supérieur en Charente

Archéopages, 2013
Nelly Connet
doaj   +1 more source