R
Roberta Oberti
Researcher at Nuclear Regulatory Commission
Publications - 137
Citations - 4829
Roberta Oberti is an academic researcher from Nuclear Regulatory Commission. The author has contributed to research in topics: Amphibole & Crystal chemistry. The author has an hindex of 34, co-authored 134 publications receiving 4307 citations.
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Journal ArticleDOI
Nomenclature of the amphibole supergroup
Frank C. Hawthorne,Roberta Oberti,George E. Harlow,Walter V. Maresch,Robert F. Martin,John C. Schumacher,Mark D. Welch +6 more
TL;DR: In this article, a new classification and nomenclature scheme for the amphibole-supergroup minerals is described, based on the general formula AB 2 C 5 T 8 O 22 W 2.
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Trace-Element Partitioning Between Amphibole and Silicate Melt
TL;DR: In this article, the role of crystal structure and composition on amphibole-liquid partition coefficients (Amph/LD) is discussed and the role played by the crystal structures and melt composition on Amph/LD variations is highlighted in addition to the effects of pressure and temperature.
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Partitioning of rare earth elements, Y, Th, U, and Pb between pargasite, kaersutite, and basanite to trachyte melts: Implications for percolated and veined mantle
Massimo Tiepolo,Riccardo Vannucci,P. Bottazzi,Roberta Oberti,Alberto Zanetti,Stephen F. Foley +5 more
TL;DR: In this paper, a set of partitioning data for rare earth elements (REE: La, Ce, Nd, Sm, Eu, Gd, Dy, Er, and Yb), Y, Th, U, and Pb have been obtained for 25 calcic amphiboles (pargasites and kaersutites) crystallized from alkali-basaltic and basanitic bulk rock compositions at pressure P = 1.4 GPa, and temperature T between 950° and 1075°C.
Journal Article
Site populations in minerals; terminology and presentation of results of crystal-structure refinement
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Amphiboles: Crystal Chemistry
TL;DR: In this article, an introduction to the crystal structure, crystal chemistry and chemical composition of amphiboles is given, and a detailed discussion of many points is given in Hawthorne (1981, 1983a), although all later developments are discussed in detail here.