Now showing items 191-192 of 192
Mineralized and unmineralized calderas in Spain; Part I, evolution of the Los Frailes Caldera
(Springer-Verlag, 1990-12)
The Cabo de Gata volcanic field of southeastern Spain contains several recently-recognized calderas. Some of the calderas are mineralized with epithermal gold, alunite, and base metal deposits, and others are barren, and ...
Navigating Open-Ended Spaces: Writing, Representing, and Speaking in a Fifth-Grade Science and Engineering Unit
(2021)
Recent reforms in elementary science and engineering standards present intriguing new opportunities for the development of project-based interdisciplinary curricula. Although project-based learning has a long research ...