Depositional environments and tectonic setting of the early Proterozoic Huronian Supergroup by Grant M. Young Download PDF EPUB FB2
Get this from a library. Depositional environments and tectonic setting of the early Proterozoic Huronian supergroup. [Grant M Young; International Association of Sedimentologists.; Geological Association of Canada.; Canadian Society of Petroleum Geologists.].
By analogy with other Proterozoic and Phanerozoic depositional basins, the sedimentary and tectonic history of early Proterozoic rocks of the northern Great Lakes area is tentatively interpreted in terms of the aulacogen model; a corollary of this interpretation is that the aulacogen opened into an ocean lying somewhere to the east, in the area.
Tectonic setting is the principal controlling factor of lithology, chemistry, and preservation of sediment accumulations in their depocenters, the sedimentary basins. The latest classification of Ingersoll and Busby () assigns sedimentary basins into five major groups based on their relationship to plate boundaries (Figure 4).It groups together the basins that are associated with the.
The early Paleoproterozoic Snowy Pass Supergroup of the Medicine Bow Mountains and Sierra Madre, Wyoming, USA and Huronian Supergroup, Ontario, Canada were Author: Andrey Bekker. The carbonate-rich Espanola Formation forms part of the Huronian Supergroup, deposited in Early Proterozoic time between about and Ga ago.
The Espanola Formation overlies glacigenic diamictites of the Bruce Formation and is gradationally overlain Cited by: A revision of previous models of Proterozoic crustal accretion in the southwestern U.S.
is presented, based on the more extensive data now available. Five Early Proterozoic predominantly volcanic supracrustal terranes are recognized, with ages of Ma, Ma, Ma, Ma, and Ma.
In some areas they are overlain by a sixth, comprised chiefly of by: "Depositional and tectonic setting of the Neoproterozoic–early Paleozoic rocks of the Virgilina sequence and Albemarle Group, North Carolina", From Rodinia to Pangea: The Lithotectonic Record of the Appalachian Region, Richard P.
Tollo, Mervin J. Bartholomew, James P. Hibbard, Paul M. Karabinos. Chapter 10 DEPOSITIONAL ENVIRONMENTS PART I: GENERAL 1. INTRODUCTION What does a sedimentologist mean by environment of deposition?The concept is not as easy to define as you might think.
Basically, what the conditions were at the site of deposition. Depositional Environments and Tectonic Setting of the Early Proterozoic Huronian Supergroup/ AugSudbury, Ontario Depositional Environments and Tectonic Setting of the Early Proterozoic Huronian Supergroup Page 3.
The table below includes specific environments where various types of sediments are deposited and common rocks, structures, and fossils that aid in deducing the depositional environment from examining a sedimentary rock outcrop. Although this is not a complete list, it is a good introduction to depositional environments.
Continental; Transitional. The early Proterozoic Huronian Supergroup of the north shore of Lake Huron (Fig. 1) is a thick (up to 12, m) succession of sedimentary and volcanic rocks deposited between about 2, and Cited by: The Proterozoic (/ ˌ p r oʊ t ər ə ˈ z oʊ ɪ k, p r ɒ t-,-ər oʊ-,-t r ə-,-t r oʊ-/) is a geological eon spanning the time from the appearance of oxygen in Earth's atmosphere to just before the proliferation of complex life (such as trilobites or corals) on the name Proterozoic combines the two forms of ultimately Greek origin: protero-meaning "former, earlier", and -zoic.
When rafting through the Inner Gorge of the Grand Canyon of the Colorado River, what Proterozoic Rock unit would you see exposed in the walls of the gorge. Mesoproterozoic Vishnu Schist (dated at to billion years) which is overlain by the Neoproterozoic supergroup.
This interpretation of early Proterozoic paleogeography sheds new light on the possible plate tectonic setting of the Hurwitz Group and associated rocks for, like the Huronian and Snowy Pass Supergroups, they could have formed adja- cent to a site of Proterozoic ocean opening and by: The Huronian Supergroup in Canada (Figs.
1 and 2) is one of the most-studied Paleoproterozoic sedimentary records in the world and thus bears the potential to capture the GOE. Bernstein L, Young GM () Depositional environments of the early Proterozoic Espanola Formation, Ontario, Canada.
Can J Earth Sci – CrossRef Google Scholar Beukes NJ () Paleoenvironmental setting of iron formations in the depositional basin of the Transvaal Supergroup, South by: 3 examples of tectonic events in the Mesoproterozoic Greenville Orogeny BY ago, regarded by many as the final phase in production of a supercontinent- Rodinia, orogenic belt extends from Canada to Alabama, deformation, metamorphism, and intrusion of passive-marine sediments related to ocean closure and continent.
Although there are some examples where the tectonic setting of the source is not the same as the tectonic setting of the depositional sink (e.g., Mack ; Floyd et al.
; Underwood and Moore ), we believe that a. Table 2. Comparison of chemical compositions of the studied turbidites with the graywackes from various tectonic settings.
Abstract. The Archaean-Palaeoproterozoic Kaapvaal craton (South Africa) records several voluminous intra-plate volcanic events. Here we present a petrologic and geochemical characterisation of the Neoarchaean Ventersdorp Supergroup and the early Cited by: 2.
Proterozoic Eon, the younger of the two divisions of Precambrian time, the older being the Archean Proterozoic Eon extended from billion to million years ago and is often divided into the Paleoproterozoic ( billion to billion years ago), the Mesoproterozoic ( billion to 1 billion years ago), and the Neoproterozoic (1 billion to million years ago) eras.
and styles of Early Proterozoic tectonism in southwestern North America. INTRODUCTION More than 50% of the present crust of North America was assembled in the period Ga. Studies of the development of early Proterozoic orogenic belts are therefore essential for understanding the history and mechanisms of continental growth of North America.
Energy in the depositional environment: The first key to the identification of sedimentary facies and environments is the relationship between energy and clast size. Generally, the higher the energy (that is, the faster the wind or water is moving) the larger the grains that can be kept in suspension.
Early tectonic models of Proterozoic lithosphere envisaged that the Archean cratons were subdivided by mobile belts in which deformation was wholly ensialic, with no rock associations that could be equated with ancient ocean basins.
These interpretations where Pro-terozoic orogenies occurred far from continental margins have since fallen out of favor. characterizing the Proterozoic Era, especially those related to the significant tectonic changes that occurred during the Late Archean—Early Proterozoic Eras.
In the following, a selection of such rocks and their tectonic setting and compositional characteristics is described. Basic Intrusive RocksFile Size: 34KB. Depositional Environments and Sequence Stratigraphy of Paralic Glacial, Paraglacial and N.,Earths Glacial Record and its Tectonic Setting, Earth-Science Reviews, v.
35, pp. 1 "Paleoclimatic Control on the Composition of the Paleoproterozoic Serpent Formation, Huronian Supergroup, Canada: A Greenhouse to Icehouse.
The interaction of tectonic, biogeochemical, and climate processes, as described in this paper, resulted in the establishment of habitable environments that fostered the Ediacaran and early Phanerozoic radiations of animal life and the emergence of complex, modern-style ecosystems.
INTRODUCTION The late Proterozoic was witness to perhaps theFile Size: KB. Tectonic activity between and Ma led to the assembly of Proterozoic Australia as an early component of the supercontinent of Rodinia.
This first involved the amalgamation of the West Australian and North Australian cratons, followed by collision with the South Australian by: More than 3 km of late Proterozoic predominantly siliciclastic strata were deposited in this basin in southeastern Idaho, western Utah, and eastern Nevada prior to continental separation in the latest Proterozoic or Early Cambrian, and represent a variety of depositional environments including basinal marine, shallow marine, braid delta.
Factors Controlling the Composition and Lithofacies Characteristics of the Paleoproterozoic Bar River Formation, The lack of land vegetation during the Early Proterozoic would have prevented confined Geological Setting.
The Huronian Supergroup of the Southern Geological Province, Canada (Figure ) is Author: Rohan Dj Aranha. Classification of Depositional Environments The simplest breakdown of depositional environments is: 1. continental 2. coastal or transitional 3. marine. Depositional environments.
Most detrital sediments are continental or transitional, and most chemical sediments are marine. Plate tectonics provides the linking framework for all tectonic and magmatic activity seen today, but it is not known when plate tectonics first developed on Earth.
New deep seismic reflection and.Geochemistry and Tectonic Setting of Early Proterozoic Supracrustal Rocks in the Southwestern United StatesCited by: Exam 2 - Historical Geology. Archean, Proterozoic, Early Paleozoic Events, Late Paleozoic Events.