Indonesian active volcanic arc: K, Sr, and Rb variation with depth to the Benioff zone

Research Article| July 01, 1976 Indonesian active volcanic arc: K, Sr, and Rb variation with depth to the Benioff zone Charles S. Hutchison Charles S. Hutchison 1Department of Geology, University of Malaya, Kuala Lumpur, Malaysia Search for other works by this author on: GSW Google Scholar Geology (1976) 4 (7): 407–408. https://doi.org/10.1130/0091-7613(1976)4<407:IAVAKS>2.0.CO;2 Article history first online: 02 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share MailTo Twitter LinkedIn Tools Icon Tools Get Permissions Search Site Citation Charles S. Hutchison; Indonesian active volcanic arc: K, Sr, and Rb variation with depth to the Benioff zone. Geology 1976;; 4 (7): 407–408. doi: https://doi.org/10.1130/0091-7613(1976)4<407:IAVAKS>2.0.CO;2 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGeology Search Advanced Search Abstract The amounts of potassium, strontium, and rubidium in volcanic rocks of the Indonesian active volcanic arc, extending from Sumatra through Java, Sumbawa, and Flores to Sulawesi, Sangihe, and Halmahera, have been related to depth of the underlying Benioff zone by multiple linear regression analysis. The following equations for the arc from Sumatra to Sumbawa have correlation coefficients better than 0.80 (level of significance <0.001):Depth to the Benioff zone (km) = 397 - (5.26 x % of SiO2 ) + (35.04 x % of K2O) = 373 - (4.36 x % of SiO2 ) + ( 0.73 x ppm of Rb) = 110 - (0.03 x % of SiO2 ) + ( 0.14 x ppm of Sr).The standard error of depth estimate is about 30 km. The correlation coefficient for the first equation is slightly better than for the other two. This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.