Samples collected from the floor of Jezero Crater with the Mars 2020 Perseverance Rover
The first samples collected by the Mars 2020 mission represent units exposed on the Jezero
Crater floor, from the potentially oldest Séítah formation outcrops to the potentially youngest …
Crater floor, from the potentially oldest Séítah formation outcrops to the potentially youngest …
Magnesium isotope geochemistry of the carbonate-silicate system in subduction zones
The lighter magnesium (Mg) isotopic signatures observed in intraplate basalts are
commonly thought to result from deep carbonate recycling, provided that the sharp …
commonly thought to result from deep carbonate recycling, provided that the sharp …
[HTML][HTML] Subducted carbonates not required: Deep mantle melting explains stable Ca isotopes in kimberlite magmas
Ca isotope geochemistry has great potential for improving our understanding of magmatic
systems and for tracing the deep Earth carbon cycle. There are still many open questions …
systems and for tracing the deep Earth carbon cycle. There are still many open questions …
[HTML][HTML] Granite petrogenesis and the δ44Ca of continental crust
Stable Ca isotopes are an increasingly useful tool for understanding the sources and
processes leading to the formation of magmatic rocks, yet Ca isotope fractionation during …
processes leading to the formation of magmatic rocks, yet Ca isotope fractionation during …
Calcium isotope constraints on OIB and MORB petrogenesis: The importance of melt mixing
ZT Eriksen, SB Jacobsen - Earth and Planetary Science Letters, 2022 - Elsevier
Lithological and isotopic heterogeneity in the mantle archive the mantle's melting history and
fingerprint crustal recycling processes coupling the deep Earth with the terrestrial biosphere …
fingerprint crustal recycling processes coupling the deep Earth with the terrestrial biosphere …
[HTML][HTML] Reworking subducted sediments in arc magmas and the isotopic diversity of the continental crust: the case of the Ordovician Famatinian crustal section …
Since the onset of plate tectonics, continents have evolved through a balance between
crustal growth, reworking, and recycling at convergent plate margins. The term “reworking” …
crustal growth, reworking, and recycling at convergent plate margins. The term “reworking” …
[HTML][HTML] Calcium isotope evidence for early Archaean carbonates and subduction of oceanic crust
Continents are unique to Earth and played a role in coevolution of the atmosphere,
hydrosphere, and biosphere. Debate exists, however, regarding continent formation and the …
hydrosphere, and biosphere. Debate exists, however, regarding continent formation and the …
The factors controlling equilibrium inter-mineral Ca isotope fractionation: insights from first-principles calculations
Equilibrium isotope fractionation factors are crucial to quantitatively interpreting Ca isotope
data of natural samples. Recent studies have revealed significant equilibrium Ca isotope …
data of natural samples. Recent studies have revealed significant equilibrium Ca isotope …
Global trends in novel stable isotopes in basalts: Theory and observations
The geochemistry of global mantle melts suggests that both mid-ocean ridge basalts
(MORB) and ocean island basalts (OIB) sample lithological and temperature heterogeneities …
(MORB) and ocean island basalts (OIB) sample lithological and temperature heterogeneities …
Temporal evolution of δ44/40Ca and 87Sr/86Sr of carbonatites: Implications for crustal recycling through time
Carbonatites are igneous rocks composed of over 50% modal carbonate minerals and their
exact origin and possible mode (s) of formation are still debated. We report stable Ca …
exact origin and possible mode (s) of formation are still debated. We report stable Ca …