Abstract
ABSTRACT A spectrum of spherical grains ranging from spherulites through oolites, pisolites to grapestones, formed at an average temperature of about 8° C, were observed in a fresh-water dam foundation drainage pipe. These low-magnesium calcite spherical grains each have a thick cortex with or without a nucleus. The cortex is characterized by concentric laminae and fibro-radiating rhombic to sheetlike fibrous crystals. Nuclei are composed of coarser crystals than those in the cortex. Calcium-rich solutions originating from foundation grout reacted with atmospheric CO2 to form these spherical grains. Nucleation and the inorganic growth of these spherical grains appear to be related to the water-flow rate.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
