Field-trip guide to the vents, dikes, stratigraphy, and structure of the Columbia River Basalt Group, eastern Oregon and southeastern Washington (usgs.gov)

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This field-trip guide explores the main source region of the CRBG and is written for trip participants attending the 2017 International Association of Volcanology and Chemistry of the Earth’s Interior (IAVCEI) Scientific Assembly in Portland, Oregon, USA. The first part of the guide provides an overview of the geologic features common in the CRFBP and the stratigraphic terminology used in the CRBG. The accompanying road log examines the stratigraphic evolution, eruption history, and structure of the province through a field examination of the lavas, dikes, and pyroclastic rocks of the CRBG

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Plutarch (plato.standford.edu) Plutarch of Chaeronea in Boeotia (ca. 45–120 CE) was a Platonist philosopher, best known to the general public as author of his “Parallel Lives” of paired Greek and Roman statesmen and military leaders. He was a voluminous writer, author also of a collection of “Moralia” or “Ethical Essays,” mostly in dialogue format, many of them devoted to philosophical topics, not at all limited to ethics.