Abstract The assembly–breakup of the Columbia/Nuna supercontinent is one most important issues in Precambrian geology. reconstruction Indochina Block Columbia poorly constrained by far, due to deficiency available geochronological and geochemical data for exposed rocks. Mesoproterozoic plagioclase amphibolites Kontum Complex have significant implication within supercontinent. This study present...

The Mesoproterozoic Gaoyuzhuang and Wumishan Formations are major geothermal reservoirs in the Hebei Province, North China. Compared to exploration of resources heat-controlling structures, carbon oxygen isotopic records two formations limited. Here, we present integrated field, petrological, geochemical, carbon, data carbonate rocks from Formations. Formation is characterized by higher CaO MgO...

Igneous sheet intrusions are a fundamental component of volcano plumbing systems. Identifying how intrusion emplacement and geometry controls later magmatic processes is critical to understanding the distribution volcanic eruptions magma-related ore deposits. Using Younger Giant Dyke Complex (YGDC), Mesoproterozoic suite large (<800 m wide) mafic dykes in southern Greenland, we assess influence...

The origin, antiquity, and affinity of benthic seaweeds (multicellular algae) in the geological past are shrouded mystery due to their preservation bias. In this study, we present a new material well-preserved carbonaceous compression fossils shale horizons Mesoproterozoic (ca. ∼1,500–1,300 Ma) Singhora Group Chhattisgarh Supergroup. Eleven distinct taxa, including one taxon, Palaeoscytosiphon ...

On the basis of geochemical whole-rock and mineralogical point analyses, concentrations V Co were determined in magnetite-ilmenite oxide ores, associated with sulphides, at Krzemianka Udryn deposits Mesoproterozoic Suwałki Anorthosite Massif (SAM) NE Poland. EPMA analyses showed that main carrier vanadium was magnetite (mean = 0.42 wt%) and, to a lesser extent, ilmenite 0.14 minor Al-spinels 0....