Search results for "LCA"
showing 10 items of 1995 documents
In situ quantification of the nitrogen content of olivine-hosted melt inclusions from Klyuchevskoy volcano (Kamchatka): Implications for nitrogen rec…
2021
International audience; Assessing the N content of arc magmas and their mantle source remains a challenge because the volatile element composition of melts and gases can be modified during magma ascent, storage, and eruption. Given that melt inclusions (MIs) in Mg-rich olivine represent the best proxies for primary arc melts, we applied, for the first time, an in situ high-resolution secondary ion mass spectrometry (SIMS) method to determine the N concentration in olivine-hosted MIs from Klyuchevskoy volcano in Kamchatka. To reverse the effects of post-entrapment modification processes (i.e., exsolution of volatiles into a fluid bubble), the MIs were partially to completely homogenized at h…
Zvaigžņotā Debess: 2005, Pavasaris
2005
Contents: A.Balklavs, N.Cimahoviča, J.Ikaunieks. Radio Astronomy in the Baltic Republics ; L.Maistrovs. Keeping Watch on Precision ; A.Balklavs. The Anthropic Principle ; Z.Alksne, A.Alksnis. Has Exoplanet Been Spotted at Last? ; J.Freimanis. The Distance to Pleiades and Problems with Hipparcos ; A.Balklavs. Does the Chandra See Black Holes in Distant Galaxy? ; A.Balklavs. Massive Black Holes – Remnants of the First Stars’ Evolution ; A.Balklavs. Cosmic Objects in Captivating Photos – 4 ; M.Gills. A Collision or a Unique Event? ; J.Jaunbergs. Volcanological Safari of Io ; D.Krieviņš. Space Launchers of Early XXI Century. Europe, Japan, China and other States ; M.Sudārs. Huygens Landing on t…