Results 41 to 50 of about 3,600 (212)

Linking palaeo‐wildfire to depositional environmental and ecological dynamics of an Early–Middle Pennsylvanian fluvial‐tidal transition zone—Palynology and pyrolysis evidence

The Depositional Record, Volume 12, Issue 1, February 2026.
The Pennsylvanian landscape in the Forest City basin was characterised by low‐lying lycopod tree and fern swamp forests with persistently high groundwater tables and adjacent fluvial channel, floodplain and upland environments. The occurrence of abundant charcoal within a specific thin interval in the Cherokee Group indicates substantial wildfire ...
Dustin Northrup, Emily Finzel, Pierre Zippi, Kevin Bohacs   +3 more
wiley   +1 more source

Elemental Mapping Reveals Selective Dolomitization in Tonian Stromatolites: Implications for Early Diagenesis and Paleoenvironmental Proxies

Geochemistry, Geophysics, Geosystems, Volume 26, Issue 12, December 2025.
Abstract Stromatolites archive critical information on Precambrian marine environments, but their geochemical signals are often obscured using complex diagenetic processes. Tonian stromatolites from the Weiji Formation, North China, show selective dolomitization in dark stromatolitic laminae, forming zoned dolomites.
Ziheng Liang, Meng Ning, Chenqing Li, Xia Wang, Chaochao Xing   +4 more
wiley   +1 more source

Scotland : Hebridean Terrane [PDF]

, 2011
The Cambrian succession in the Hebridean Terrane extends for about 200 km from near Durness on the northern coast of the Scottish mainland SSW to Skye (Fig. 14). The classic account of the whole region is the memoir by Peach et al.
Molyneux, S.G., Rushton, A.W.A.
core  

Phytoplankton Blooms on the Barents Shelf, Svalbard, Associated With the Permian–Triassic Mass Extinction

AGU Advances, Volume 6, Issue 5, October 2025.
Abstract Mid‐ to higher‐latitude shallow marine environments are suggested to serve as refugia for organisms during intervals of rapid environmental change associated with hyperthermals. To understand the role of these environments during hyperthermals, we herein investigate the Permian–Triassic environmental crisis, which led to the most severe mass ...
S. Z. Buchwald, D. Birgel, K. Senger, T. Mosociova, Y. Pei, V. Zuchuat, L. G. Tarhan, A. B. Frank, F. Galasso, M. A. Gómez Correa, E. Koşun, B. Karapunar, X. Wang, E. Kustatscher, H. Prinoth, N. Lahajnar, R. Steinkrauss, J. Peckmann, W. J. Foster   +18 more
wiley   +1 more source

An overview of Chinese Silurian acritarch research [PDF]

Canadian Journal of Earth Sciences, 2016
The present paper reviews all investigations of Silurian acritarchs in China. Since Silurian acritarchs were first reported in China in 1978, significant progress has been made in Chinese Silurian acritarch research. A total of 30 scientific articles and theses have been published on Silurian acritarchs from China.
Yan, Kui, Li, Jun, Servais, Thomas
openaire   +1 more source

The stratigraphy of a Late Palaeozoic borehole section at Douglas River, eastern Tasmania: a synthesis of marine macro-invertebrate and palynological data [PDF]

, 1984
A section 236.8 m in thickness of Late Palaeozoic (Late Carboniferous-Permian) rocks of the Lower Parmeener Super-Group was encountered in a borehole at Douglas River, eastern Tasmania.
Calver, CR, Clarke, MJ, Truswell, EM
core   +2 more sources

Late Devonian (Frasnian–Famennian) palynomorphs from the Padeha and Bahram Formations of Shahzadeh Mohammad section, northwest of Kerman, Iran

Acta Palaeobotanica, 2022
A diverse and well-preserved microphytoplankton assemblage is reported from a measured section of Frasnian–Famennian (Upper Devonian) Padeha and Bahram Formations in Shahzadeh Mohammad area, northwestern Kerman, southeast Iran. The palynoflora assemblage
Roghayeh Rouzegar, Péter Ozsvárt
doaj   +1 more source

Palynofloras of the Chigua (Devonian) and Malimán (Mississippian) formations from the Precordillera Argentina: age, correlation and discussion of the D/C boundary [PDF]

, 2009
Se presenta el análisis cualitativo y cuantitativo de las asociaciones palinológicas obtenidas de las formaciones Chigua (Devónico) y Malimán (Mississippiano), aflorantes en la Cuenca Río Blanco, Precordillera Argentina.
Azcuy, Carlos Leopoldo, Di Pasquo Lartigue, Maria, Rodriguez Amenabar, Cecilia   +2 more
core  

The Location and Styles of Ice-Free “Oases” during Neoproterozoic Glaciations with Evolutionary Implications [PDF]

, 2012
Evidence based on molecular clocks, together with molecular evidence/biomarkers and putative body fossils, points to major evolutionary events prior to and during the intense Cryogenian and Ediacaran glaciations. The glaciations themselves were of global
Bailey, Bell, Bowring, Brenchley, Butterfield, Butterfield, Chen, Chen, Craig, Dalziel, Etienne, Garrison, Grey, Grotzinger, Guo, Hagadorn, Hoffman, Hoffman, Huldtgren, Karl, Kirschvink, Love, Macdonald, Mann, Mawson, Meert, Scotese, Sprigg, Staley, Summons, Sutcliffe, Waggoner   +31 more
core   +1 more source

Origins and Alteration of Ediacaran Carbonates Recording the Shuram Excursion in Oman

Geochemistry, Geophysics, Geosystems, Volume 26, Issue 5, May 2025.
Abstract The Shuram excursion is the largest known negative carbon isotope excursion in Earth's history. Recognized globally, it follows the Ediacaran Gaskiers glaciation and precedes a marked increase in the diversity and complexity of the earliest macroscopic multicellular organisms in the fossil record.
Kristin D. Bergmann, Magdalena R. Osburn, Noah T. Anderson, Claire Hayhow, Julia Wilcots, Marjorie D. Cantine, Woodward W. Fischer, Magali Bonifacie   +7 more
wiley   +1 more source