Results 51 to 60 of about 16,823 (262)

⁸⁷Sr/⁸⁶Sr chemostratigraphy of Neoproterozoic Dalradian limestones of Scotland and Ireland: constraints on depositional ages and time scales [PDF]

, 2004
New calcite ⁸⁷Sr/⁸⁶Sr data for 47 limestones from the metamorphosed and deformed Neoproterozoic-Cambrian Dalradian Supergroup of Scotland and Ireland are used to identify secular trends in seawater <sup>
Ellam, R.M., Fallick, A.E., Graham, C.M., Thomas, C.W.   +3 more
core   +1 more source

The regional evolution of a dryland fluvio‐aeolian and lacustrine succession in response to allocyclic forcing: insights from the Early Permian Cutler Group, Utah, USA

Sedimentology, Volume 73, Issue 2, Page 297-354, February 2026.
ABSTRACT Preserved allocyclic signatures in the rock record often reflect basin‐scale climatic variability and serve as key proxies for correlating ancient dryland successions. The notion of climate cyclicity, however, remains largely untested on regionally constrained, outcrop‐calibrated studies.
Oliver Button, Jack G. Connor, Ross P. Pettigrew, Ben A. Kilhams, John A. Howell   +4 more
wiley   +1 more source

Ostracod assemblages indicating a low water level episode of Lake Peipsi at the beginning of the Holocene [PDF]

Estonian Journal of Earth Sciences, 2009
Three sediment cores from the northern part of Lake Peipsi in eastern Estonia were analysed for their ostracod content. The investigated sediments consist of late Weichselian glaciolacustrine varved and homogeneous clay, lake marl, and gyttja. Altogether
Niinemets, Eve, Hang, Tiit
doaj  

Facies analysis provides new insights into event bed deposition in a hadal trench environment

Sedimentology, Volume 73, Issue 2, Page 441-477, February 2026.
ABSTRACT Hadal trenches preserve exceptional sedimentary archives of past geological events, yet their depositional processes remain poorly constrained. The Japan Trench captures complex earthquake‐triggered event beds that record repeated sediment‐gravity flows that deliver terrigenous and biogenic material into the trench, informing palaeoseismic ...
Mishelle Muthre, Jean‐Noël Proust, Charlotte Pizer, Ken Ikehara, Jyh‐Jaan Steven Huang, Hajime Naruse, Michael Strasser   +6 more
wiley   +1 more source

Review and Inventory of Pedological and Stratigraphical Knowledge for Investigating Shallow Landslides: A Case Study of the Cervinara Area (Central Campanian Apennines, Southern Italy)

Geosciences
Landslides are one of the most serious problems affecting large parts of the world. There are two approaches that are used to study the organization of these land cover features: firstly, an approach utilizing lithostratigraphic tools, where soils are ...
Antonella Ermice, Carla Buffardi, Rossana Marzaioli, Marco Vigliotti, Daniela Ruberti   +4 more
doaj   +1 more source

The Jurassic of Denmark and Greenland: The Jurassic of the Netherlands [PDF]

Geological Survey of Denmark and Greenland Bulletin, 2003
A recent revision of the lithostratigraphy of the Netherlands has triggered an extensive re-evaluation of existing ideas on the Jurassic structural and depositional history.
Herngreen, G.F. Waldemar, Kouwe, Wim F.P., Wong, Theo E.   +2 more
doaj  

An updated correlation of the Silurian strata in Estonia [PDF]

Estonian Journal of Earth Sciences
The correlation of the Silurian succession of Estonia with the global standard has long been considered reliable. However, new information, particularly on the distribution of microfossils, has changed our understanding of the Silurian stratigraphy in ...
Peep Männik, Tõnu Meidla, Olle Hints
doaj   +1 more source

Intercalibration of Boreal and Tethyan timescales: the magneto-biostratigraphy of the Middle Triassic and the latest Early Triassic from Spitsbergen, Arctic Norway [PDF]

, 2008
An integrated bio-magnetostratigraphic study of the latest Early Triassic to the upper parts of the Middle Triassic, at Milne Edwardsfjellet in central Spitsbergen, Svalbard, allows a detailed correlation of Boreal and Tethyan biostratigraphies.
Hounslow, Mark W., Hu, Mengyu, Karloukovski, Vassil, Mørk, Atle, Orchard, Michael J., Os Vigran, Jorunn, Weitschat, Wolfgang   +6 more
core   +1 more source

Mo Isotopic Records Imply Persistent Ocean Oxygenation in the Deep Southwest Pacific During the Early Cenozoic Warming Period

Geophysical Research Letters, Volume 53, Issue 2, 28 January 2026.
Abstract During the early Cenozoic greenhouse period, counterintuitive contractions in tropical Pacific oxygen‐deficient zones have been linked to enhanced deep‐ocean ventilation, yet direct geological evidence remains limited. Here we present molybdenum (Mo) isotopic records from International Ocean Discovery Program Site U1509.
Xiaowen Liu, Xiaole Sun, Yi Huang, Weidong Sun, Yuchen Li, Yufei Hao, Sifan Wu, Le Li, Jing Huang   +8 more
wiley   +1 more source

Principal contradictions in the way of West Siberian berrias-aptian deposit’s regional stratigraphic schemes developing

Известия высших учебных заведений: Нефть и газ
The regional stratigraphic schemes of Jurassic and Cretaceous deposits in Western Siberia, approved over the last fifty years, reflect a conflict between the current clinoform concept and an outdated plane-parallel model.
V. F. Grishkevich, A. A. Nezhdanov, E. V. Oleynik   +2 more
doaj   +1 more source