Results 11 to 20 of about 16,823 (262)

Localized and Transient Oxygenation of Shallow Oceans of Southwestern Laurentia at the Ediacaran-Cambrian Boundary. [PDF]

open access: yesGeobiology
ABSTRACT The Ediacaran–Cambrian boundary, which precedes one of the most significant biotic diversification events in Earth's history, is associated with a global negative carbon isotope excursion termed the BAsal Cambrian carbon isotope Excursion (BACE).
Chanchai W   +6 more
europepmc   +2 more sources

Marcasite at the Permian‐Triassic Transition

open access: yesGeophysical Monograph Series, Page 377-399., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Elena Lounejeva   +7 more
wiley  

+1 more source

Pliocene-Pleistocene marine cyclothems, Wanganui Basin, New Zealand: a lithostratigraphic framework [PDF]

open access: yes, 1995
The Rangitikei River valley between Mangaweka and Vinegar Hill and the surrounding Ohingaiti region in eastern Wanganui Basin contains a late Pliocene to early Pleistocene (c. 2.6-1.7 Ma), c.
Abbott S. T.   +13 more
core   +2 more sources

Sedimentation and subsidence history of the Lomonosov Ridge [PDF]

open access: yes, 2006
During the first scientific ocean drilling expedition to the Arctic Ocean (Arctic Coring Expedition [ACEX]; Integrated Ocean Drilling Program Expedition 302), four sites were drilled and cored atop the central part of the Lomonosov Ridge in the Arctic ...
Backman, J.   +31 more
core   +3 more sources

Lower Cretaceous Lithostratigraphy near Galicia Bank

open access: bronze, 1979
V.A. Basov   +6 more
openalex   +2 more sources

Geology of the Gobi and Mongol Altai junction enhanced by gravity analysis: a key for understanding of the Mongolian Altaides

open access: yesJournal of Maps, 2020
The geological map L-47-V at a scale 1:500,000 covers part of Mongolian Altaids with ophiolite fragments in southern Central Asian Orogenic Belt in SW Mongolia. This region has a basin and range topography with Neoproterozoic and Palaeozoic units exposed
Pavel Hanžl   +11 more
doaj   +1 more source

Geology of Piemonte region (NW Italy, Alps–Apennines interference zone)

open access: yesJournal of Maps, 2017
The geological map of Piemonte Region (Italy) is a graphic representation of the geology of the region, grounded on a large geodatabase, that can be also browsed as an interactive scalable map (GeoPiemonte Map) using a WebGIS application.
F. Piana   +10 more
doaj   +1 more source

Nové litostratigrafické jednotky magurského príkrovu na Orave (Vonkajšie Západné Karpaty) [PDF]

open access: yesGeologické práce. Správy, 2020
The defiition of two new lithostratigraphic units was one of the results of geological research of the Biela Orava region. The Oravské Veselé Mb. was defied as a new lithostratigraphic unit in the southern part of the Bystrica Unit, where an increased ...
František Teťák   +3 more
doaj  

Glaciotectonic deformation of till-covered glaciofluvial deposits in Oulu region, Finland [PDF]

open access: yesBulletin of the Geological Society of Finland, 2008
Sedimentary sequences in Isoniemi and Hangaskangas in the Oulu area of Finland have been studied using conventional sedimentological techniques including structural and clast-fabric measurements on fold and fault structures and till units. Four different
A. Pasanen, J.P. Lunkka
doaj   +1 more source

The Himmerkinlahti member: An indicator of intra-karelian erosion within the early Proterozoic Kuusamo Belt, Posio, northern Finland [PDF]

open access: yesBulletin of the Geological Society of Finland, 2000
The paper establishes the Himmerkinlahti Member, which is a thin metamorphosed conglomerate-sandstone unit within the middle part of the early Proterozoic (Karelian) supracrustal sequence of the Kuusamo Belt, northern Finland.
K. Laajoki
doaj   +1 more source

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