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Silurian period
(Encyclopedia) Silurian periodSilurian periodsĭl&oobreve;rˈēən, sī– [key] [from the Silures, ancient tribe of S Wales, where the period was first studied; named by the British geologist R. I.…Geology of the Grand Canyon: Chapter Ii. Geography Of The Grand CaÃÂon District.
CHAPTER I. THE PLATEAU PROVINCE.CHAPTER III. THE TERRACES.CHAPTER II. GEOGRAPHY OF THE GRAND CAíON DISTRICT.The Grand Cañon District-the region draining into the Grand and Marble Cañons-is…Geology of the Grand Canyon: Corrasion.
WEATHERING.CORRASION.Mr. G. K. Gilbert has embodied in his admirable monograph on the Henry Mountains, a chapter on Land Sculpture, which sets forth in most logical and condensed from the…U.S. Hurricanes
Find data about the most intense and deadliest hurricanes to strike the U.S. Figures include U.S. deaths only, except where noted. Damages are actual cost in U.S. dollars, followed in parentheses by…October Current Events 2023: Disaster News
Top of Page World News | U.S. News | Science & Technology News | Current Events This Week The world is a very busy place, and it's hard to stay on top of everything. Infoplease has got you…July 2022 Current Events: Disaster News
Top of Page World News | US News | Science & Technology News The world is a very busy place, and it's hard to stay on top of everything. Infoplease has got you covered. Here are the Disaster…Champagne, historic region and former province, France
(Encyclopedia) ChampagneChampagneshäNpäˈnyə [key], historic region and former province, NE France, consisting mainly of Aube, Marne, Haute-Marne, and Ardennes depts., which formed the modern…Paleozoic era
(Encyclopedia) Paleozoic eraPaleozoic erapāˌlēəzōˈĭk [key], a major division (era) of geologic time (see Geologic Timescale, tablegeologic timescale, table) occurring between 570 to 240 million years…fold
(Encyclopedia) fold, in geology, bent or deformed arrangement of stratified rocks. These rocks may be of sedimentary or volcanic origin. Although stratified rocks are normally deposited on the earth'…Castile
(Encyclopedia) CastileCastilekăstēlˈ [key], Span. CastillaCastilekästēˈlyä [key], historic region and former kingdom, central and N Spain, traditionally divided into Old Castile and New Castile, and…