RT Journal Article
T1 Pore fluid evolution and quartz diagenesis in the Khatatba Formation, Western Desert, Egypt
A1 Rossi Nieto, Carlos
A1 Goldstein, R. H.
A1 Marfil Pérez, Rafaela
AB In the Khatatba sandstones (Middle Jurassic, Salam oil field, Egypt), detailed fluid inclusion analyses in the quartz over-growths reveal a complex history. The earliest cement zones precipitated from hot, connate freshwater and seawater (Th = 133-162°C; salinity = 0-3.5 wt.% NaCl eq.). A second phase of quartz precipitated from brines of variable salinities (Th = 125-148°C; salinity = 5-20-wt.% NaCl eq.), inconsistent with connate fluids. Both phases of quartz cementation resulted from multiple events of injection of hot fluids related to fracturing, quartz precipitation being caused by cooling after injection. The final phase of quartz precipitated from consistently high salinity brine (Th = 114-133°C; salinity = 21-24 wt.% NaCl eq.) associated with oil (Th = 79-127°C) during a period of overall cooling.
PB Elsevier
SN 0375-6742
YR 2000
FD 2000-06
LK https://hdl.handle.net/20.500.14352/110603
UL https://hdl.handle.net/20.500.14352/110603
LA eng
NO Rossi, Goldstein y Marfil (2000): «Pore fluid evolution and quartz diagenesis in the Khatatba formation, western Desert, Egypt», en Journal of Geochemical Exploration, pp. 91-96. Disponible en: https://doi.org/10.1016/S0375-6742(00)00051-0.
DS Docta Complutense
RD 19 dic 2025