RT Journal Article
T1 The Dolomite Problem: A Matter of Time
A1 Pina Martínez, Carlos Manuel
A1 Pimentel Guerra, Carlos
A1 Crespo López, Ángel
AB Why is the mineral dolomite, CaMg(CO3)2, abundant in ancient sedimentary rocks but scarce in modern rock-forming environments? What are the natural processes that lead to the characteristic Mg−Ca order in the dolomite structure? These important geological questions have captivated the interest of geoscientists for over a century, but the answers still remain elusive. Only recently, by the development of experimental work and the generation of large geochemical data sets, we began to suspect that both the formation and Mg−Ca ordering of dolomite could be the result of progressive dissolution−(re)crystallization reactions extended over large geological periods of time. Here, we present an initial estimate of dolomite cation-ordering times derived from previously reported data of Phanerozoic dolomites. This result provides new insight into the process of dolomite formation in nature, and it clearly suggests that can be possible to precisely determine the kinetics of the Mg−Ca ordering of natural dolomites.
PB ACS Publications
SN 2472-3452
YR 2022
FD 2022-06-03
LK https://hdl.handle.net/20.500.14352/71350
UL https://hdl.handle.net/20.500.14352/71350
LA eng
NO CRUE-CSIC (Acuerdos Transformativos 2022)
NO Juan de la Cierva-Formación postdoctoral contract
DS Docta Complutense
RD 13 abr 2025