Skip to main content
U.S. flag

An official website of the United States government

K, Rb, Sr and 87Sr 86Sr in rocks from the Mid-Indian Oceanic Ridge

January 1, 1973

The 87Sr/86Sr ratios of Mid-Indian Oceanic Ridge (MIOR) basalts are nearly identical (0.7032 to 0.7035), with the exception of one more highly radiogenic sample (0.7043). These values are consistently higher than the strontium isotopic ratios of the ridge basalts from Atlantic and Pacific Oceans, suggesting that the source of the MIOR basalts was depleted in alkalies more recently and/or to a lesser degree than the basalts from other oceans.

    Publication Year 1973
    Title K, Rb, Sr and 87Sr 86Sr in rocks from the Mid-Indian Oceanic Ridge
    DOI 10.1016/0012-821X(73)90060-5
    Authors K.V. Subbarao, C. E. Hedge
    Publication Type Article
    Publication Subtype Journal Article
    Series Title Earth and Planetary Science Letters
    Index ID 70010179
    Record Source USGS Publications Warehouse