Primordial neon and the deep mantle origin of kimberlites [PDF]
Nature CommunicationsThe genesis of kimberlites is unclear despite the economic and scientific interest surrounding these diamond-bearing magmas. One critical question is whether they tap ancient, deep mantle domains or the shallow convecting mantle with partial melting ...
Andrea Giuliani +10 more
doaj +3 more sources
DNA sequencing, microbial indicators, and the discovery of buried kimberlites [PDF]
Communications Earth & Environment, 2023 Population growth and technological advancements are placing growing demand on mineral resources. New and innovative exploration technologies that improve detection of deeply buried mineralization and host rocks are required to meet these demands.
Rachel L. Simister +6 more
doaj +2 more sources
Diamond preservation in the lithospheric mantle recorded by olivine in kimberlites [PDF]
Nature Communications, 2023 The diamond potential of kimberlites is difficult to assess due to several mantle and magmatic processes affecting diamond content. Traditionally, initial evaluations are based on the compositions of mantle-derived minerals (garnet, chromite ...
Andrea Giuliani +8 more
doaj +2 more sources
Kimberlite eruptions driven by slab flux and subduction angle [PDF]
Scientific Reports, 2023 Kimberlites are sourced from thermochemical upwellings which can transport diamonds to the surface of the crust. The majority of kimberlites preserved at the Earth’s surface erupted between 250 and 50 million years ago, and have been attributed to ...
Ben R. Mather +4 more
doaj +2 more sources
Sulfur Isotope Constraints on the Petrogenesis of the Kimberley Kimberlites [PDF]
Geochemistry, Geophysics, Geosystems, 2021 Cretaceous kimberlites in southern Africa have been suggested to host deeply subducted material in their mantle sources based on radiogenic isotope systematics. However, potential subducted material contributions to the volatile budget, including sulfur,
Angus Fitzpayne +5 more
doaj +2 more sources
Mapping global kimberlite potential from reconstructions of mantle flow over the past billion years. [PDF]
PLoS ONE, 2022 Kimberlites are the primary source of economic grade diamonds. Their geologically rapid eruptions preferentially occur near or through thick and ancient continental lithosphere.
Anton Grabreck +2 more
doaj +2 more sources
Permian Large Igneous Provinces and Their Paleoenvironmental Effects
Geophysical Monograph Series, Page 417-434., 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.
Jun Chen, Yi‐Gang Xu
wiley +4 more sources
Geophysical Monograph Series, Page 137-165., 2020 This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.
Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions
Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Konstantin Litasov +3 more
wiley +5 more sources
Geochemistry, Geophysics, Geosystems, 2022 Despite the scientific and economic significance of kimberlites and related magmas, their origin is unclear. Here, we address this issue using whole‐rock and perovskite‐derived Sr‐Nd‐Hf isotopes for the three occurrences of kimberlite, lamproites and ...
Hayden Dalton +7 more
doaj +1 more source
Journal of Asian Earth Sciences: X, 2022 Phlogopites in a suite of ultramafics from Bangladesh have been analyzed to ascertain the mineralization and the timing of cooling of phlogopites and reveal their emplacement tectonics.
Ismail Hossain +3 more
doaj +1 more source