Results 61 to 70 of about 899 (204)

The Teichichnus Ichnofacies: Its neoichnological basis and identification in the rock record

Sedimentology, Volume 72, Issue 2, Page 408-441, February 2025.
Abstract Research on the ichnology of brackish‐water environments began in the 1930s and has led to the identification of predictable infaunal patterns. Brackish‐water deposits characteristically display low‐diversity tracefossil assemblages consisting of both vertical and horizontal structures.
Murray K. Gingras, James A. MacEachern, Shahin E. Dashtgard, Kerrie L. Bann   +3 more
wiley   +1 more source

The ethological study of Glossifungites ichnofacies in the modern & Miocene Mahakam Delta, Indonesia

, 2013
Although firm ground assemblages are well understood, the Glossifungites ichnofacies concept generates some debates amongst geologists (Gingras et al., 2000), because firm grounds represent intermediate gradational state between soft ground and hard ...
Arifullah, Ery
core   +1 more source

Late Ordovician ironstone and its relation to ocean redox instability, climate and glaciation

Sedimentology, Volume 72, Issue 2, Page 631-665, February 2025.
Abstract The Upper Ordovician (Katian) Neda Formation, a phosphatic ironstone, records a widespread but short‐lived shift to ferruginous waters across a vast epicontinental area. Lithofacies and stratigraphic reappraisal indicate that Neda ironstone deposition occurred on a storm‐dominated ramp when coastal upwelling emplaced eutrophic ferruginous ...
Edward J. Matheson, Jackson D. Malone, Peir K. Pufahl, Eric E. Hiatt   +3 more
wiley   +1 more source

Occurrences of Trace Fossils of the Himmatnagar Sandstone Formation (Lower Cretaceous), North Gujarat, Western India

Journal of the Palaeontological Society of India
The Lower Member of the Himmatnagar Sandstone Formation is exposed to the south of Sapteshwar between Sapteshwar and Kadoli in Sabarkantha District, North Gujarat, India.
KHUSHALI Y. THAKAR, PARAS M. SOLANKI
doaj   +1 more source

An Ordovician Assemblage of Cool Water‐Adapted Paleotropical Ostracods Suggests an Early Psychrosphere

Island Arc, Volume 34, Issue 1, January/December 2025.
ABSTRACT An ostracod assemblage from the Late Ordovician (Katian) Phu Ngu Formation of northern Vietnam, South China paleoplate, yields typical Baltic and Laurentian‐affinity genera together with some endemic forms. Detailed paleontological and sedimentary analysis of the Phu Ngu Formation suggests it was deposited in a deeper marine forearc setting ...
Anna McGairy, Phong Duc Nguyen, Mark Williams, Christopher P. Stocker, Thomas H. P. Harvey, Toshifumi Komatsu, Thomas W. Wong Hearing, C. Giles Miller, Chloé M. Marcilly, Alexandre Pohl   +9 more
wiley   +1 more source

Ichnology on crossroad: state of art of ichnofacies

, 2019
This bachelor thesis analyses the state of the current ichnofacies paradigm in detail. The introduction deals briefly with the origin and development of the ichnofacies concept in order to understand principles on which current paradigm is based.
Tisoň, Lukáš
core  

Application of digital image treatment to the characterization and differentiation of deep-sea ichnofacies

The ichnofacies model proposed by Seilacher in the 1960’s stands as one of the main tools used in the ichnological research. Based on the integration of numerous ichnological and sedimentological observations, it entails a precise characterization of the
Dorador, Javier, Rodríguez-Tovar, Francisco J   +1 more
core   +1 more source

Fluvial and eolian ichnofaunas from the Lower Permian of South America (Patquía Formation, Paganzo Basin)

Geologica Acta, 2011
The Lower Permian Patquía Formation is the youngest unit of the Paganzo Basin, western Argentina. The lower section consists of red mudstones, and fine- and coarse grained sandstones deposited in fluvial systems with extensive and thick floodplain ...
V. KRAPOVICKAS, A.C. MANCUSO, A.B. ARCUCCI, A.T. CASELLI   +3 more
doaj  

Evolution and architecture of an exhumed ocean‐facing coarse‐grained submarine canyon fill, Baja California, Mexico

Sedimentology, Volume 72, Issue 1, Page 189-226, January 2025.
ABSTRACT Present day submarine canyons are active conduits for the transfer of large volumes of sediment, carbon and pollutants from continents to oceans. However, the evolution of submarine canyons over geological timescales remains poorly understood due to their erosional nature and low preservation potential. The Late Cretaceous Punta Baja Formation
Max J. Bouwmeester, Ian A. Kane, David M. Hodgson, Stephen S. Flint, William J. Taylor, Euan L. Soutter, Adam D. McArthur, Miquel Poyatos‐Moré, Joshua Marsh, Ed Keavney, Rufus L. Brunt, Victoria Valdez‐Buso   +11 more
wiley   +1 more source

Tidal versus fluvial point bars: Key features from the integration of outcrop, core and wireline log information of Triassic examples

The Depositional Record, Volume 10, Issue 5, Page 793-820, November 2024.
Abstract The Triassic red beds of the Tabular Cover of the Iberian Meseta are an excellent reservoir outcrop analogue, a direct consequence of high‐quality exposures, which offer exceptional three‐dimensional outcrops, as well as a wide variability of depositional environments.
Luis Miguel Yeste, Marc Gil‐Ortiz, Fernando García‐García, César Viseras, Neil David Mcdougall, Patricia Cabello, Luca Caracciolo   +6 more
wiley   +1 more source