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Related to Paleoproterozoic: Mesoproterozoic


 (pā′lē-ō-prŏt′ər-ə-zō′ĭk, -prō′tər-)
Of, relating to, or being the oldest of the three eras of the Proterozoic Eon, from approximately 2.5 billion to 1.6 billion years ago, marked by the formation of stable continents and the appearance of cyanobacteria. See Table at geologic time.
The Paleoproterozoic Era.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
References in periodicals archive ?
The Koillismaa Complex is part of a suite of Paleoproterozoic continental rift-related intrusions which are highly prospective for PGE-Cu-Ni deposits such as the nearby Suhanko (Arctic Platinum) deposit located 90 km northwest of the LK Project.
These prospects cover quartz-feldspar porphyry to dioritic composition bodies intruding volcano-sedimentary Paleoproterozoic greenstone rocks of the Barama-Mazaruni supergroup which are highly prospective for large tonnage, orogenic gold deposits.
Paleoproterozoic Svecofennian orogenic belt in the surroundings of the Gulf of Finland.
The mineralisation is hosted in the Archean to Paleoproterozoic Riacho dos Machados group, of metasedimentary rocks.
The study area belongs to the Pan-African belt (Figure 1), also interpreted as the result of the convergence and collision between the steady Archaean Congo Craton to the south and one or two Paleoproterozoic plates [16,17].
Nobre Villas et al., "A study of the hydrothermal alteration in Paleoproterozoic volcanic centers, Sao Felix do Xingu region, Amazonian Craton, Brazil, using short-wave infrared spectroscopy," Journal of Volcanology and Geothermal Research, vol.
These rocks probably formed in the Neoarchean and have been subjected to amphibolite-facies metamorphism in the Paleoproterozoic [43-45].
Their topics include evaluating kinematic displacement rate effects of transient thermal processes in thrust belts using coupled thermo-mechanical finite-element models, the Paleozoic tectonic evolution of the western Blue Ridge in the southern Appalachians: a critical examination of long-standing conflicts in a poly-deformed system, the Paleoproterozoic to Triassic crustal evolution of Korea's Gyeonggi Massif and tectonic correlation with the North China craton, thrust loading as a mechanism for crustal recycling: an example from the Swakane Gneiss Cascades crystalline core in Washington State, and geologic and kinematic insights from far-traveled horses in the Brevard fault zone of the southern Appalachians.
Knudsen, "Iron-oxidizing microbial ecosystems thrived in late Paleoproterozoic redox-stratified oceans," Earth and Planetary Science Letters, vol.