Abstract
Natrocarbonatite lavas extruded by Ol Doinyo Lengai volcano, Tanzania, exhibit the lowest known magmatic eruption temperatures, ranging between 500 and 600 C. Nevertheless, as shown here, the near-infrared bands 5 and 7 of the Landsat Thematic Mapper (TM), and the mid-infrared channel 3 of the spaceborne Advanced Very High Resolution Radiometer (AVHRR) are able to detect thermal emission from active carbonatites. Laboratory-measured visible-to-near-infrared reflectance spectra of both silicate and carbonatite rocks from Ol Doinyo Lengai are used to infer spectral emissivities, enabling interpretation of satellite measurements. Given the remote location of this unique volcano, satellite remote sensing could play a valuable role in its future surveillance, and offers a potential means for distinguishing between silicate and carbonatite eruptions.
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.
