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Chipped-stone Crescent
Chipped stone crescents are a class of artifact found mainly associated with surface components of archaeological sites located in the Great Basin, the Columbia Plateau, and throughout California. Although their distribution covers a large portion of the western United States, crescents are often found in similar contexts in close proximity to water sources including playas, lakes, rivers, and mainland and island coast lines. Crescents are generally thought to be diagnostic to the terminal Pleistocene and early Holocene (approx. 12,000-8,000 years before present BP and are representative of assemblages that include fluted and stemmed projectile points. The exact purpose of crescents is unknown, but scientists suggest they may have been hafted as a projectile point, or used as part of a throwing stick. Crescent morphology Crescents are a type of artifact or group of artifacts that are somewhat morphologically diverse, but typically consist of a chipped-stone tool that is bilate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lithic Crescent Tool
Lithic may refer to: *Relating to stone tools **Lithic analysis, the analysis of stone tools and other chipped stone artifacts ** Lithic core, the part of a stone which has had flakes removed from it **Lithic flake, the portion of a rock removed to make a tool ** Lithic reduction, the process of removing flakes from a stone to make a tool ** Lithic technology, the array of techniques to produce tools from stone * Lithic fragment (geology), pieces of rock, eroded to sand size, and now sand grains in a sedimentary rock *Lithic sandstone, sandstone with a significant component of (above) lithic fragments *Lithic stage, the North American prehistoric period before 10,000 years ago See also *Stone Age **Paleolithic **Mesolithic **Neolithic *Stone carving Stone carving is an activity where pieces of rough natural stone are shaped by the controlled removal of stone. Owing to the permanence of the material, stone work has survived which was created during our prehistory or past time. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Great Basin
The Great Basin is the largest area of contiguous endorheic basin, endorheic watersheds, those with no outlets, in North America. It spans nearly all of Nevada, much of Utah, and portions of California, Idaho, Oregon, Wyoming, and Baja California. It is noted for both its arid climate and the basin and range topography that varies from the North American low point at Badwater Basin in Death Valley to the highest point of the contiguous United States, less than away at the summit of Mount Whitney. The region spans several physical geography, physiographic divisions, biomes, ecoregions, and deserts. Definition The term "Great Basin" is applied to hydrography, hydrographic, ecology, biological, floristic province, floristic, physiographic, topography, topographic, and Ethnography, ethnographic geographic areas. The name was originally coined by John C. Frémont, who, based on information gleaned from Joseph R. Walker as well as his own travels, recognized the hydrographic nature o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Columbia Plateau
The Columbia Plateau is a geologic and geographic region that lies across parts of the U.S. states of Washington, Oregon, and Idaho. It is a wide flood basalt plateau between the Cascade Range and the Rocky Mountains, cut through by the Columbia River. Geology During late Miocene and early Pliocene times, a flood basalt engulfed about of the Pacific Northwest, forming a large igneous province. Over a period of perhaps 10 to 15 million years, lava flow after lava flow poured out, ultimately accumulating to a thickness of more than 6,000 feet (1.8 km). As the molten rock came to the surface, the Earth's crust gradually sank into the space left by the rising lava. The Columbia River Basalt Group consists of seven formations: The Steens Basalt, Imnaha Basalt, Grande Ronde Basalt, Picture Gorge Basalt, Prineville Basalt, Wanapum Basalt, and Saddle Mountains Basalt. Many of these formations are subdivided into formal and informal members and flows. The subsidence of the crust ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pleistocene
The Pleistocene ( , often referred to as the ''Ice age'') is the geological Epoch (geology), epoch that lasted from about 2,580,000 to 11,700 years ago, spanning the Earth's most recent period of repeated glaciations. Before a change was finally confirmed in 2009 by the International Union of Geological Sciences, the cutoff of the Pleistocene and the preceding Pliocene was regarded as being 1.806 million years Before Present (BP). Publications from earlier years may use either definition of the period. The end of the Pleistocene corresponds with the end of the last glacial period and also with the end of the Paleolithic age used in archaeology. The name is a combination of Ancient Greek grc, label=none, πλεῖστος, pleīstos, most and grc, label=none, καινός, kainós (latinized as ), 'new'. At the end of the preceding Pliocene, the previously isolated North and South American continents were joined by the Isthmus of Panama, causing Great American Interchang ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Holocene
The Holocene ( ) is the current geological epoch. It began approximately 11,650 cal years Before Present (), after the Last Glacial Period, which concluded with the Holocene glacial retreat. The Holocene and the preceding Pleistocene together form the Quaternary period. The Holocene has been identified with the current warm period, known as MIS 1. It is considered by some to be an interglacial period within the Pleistocene Epoch, called the Flandrian interglacial.Oxford University Press – Why Geography Matters: More Than Ever (book) – "Holocene Humanity" section https://books.google.com/books?id=7P0_sWIcBNsC The Holocene corresponds with the rapid proliferation, growth and impacts of the human species worldwide, including all of its written history, technological revolutions, development of major civilizations, and overall significant transition towards urban living in the present. The human impact on modern-era Earth and its ecosystems may be considered of global si ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Channel Islands (California)
The Channel Islands () are an eight-island archipelago located within the Southern California Bight in the Pacific Ocean, off the coast of California. The four Northern Channel Islands are part of the Transverse Ranges geologic province, and the four Southern Channel Islands are part of the Peninsular Ranges province. Five of the islands are within the Channel Islands National Park, and the waters surrounding these islands make up Channel Islands National Marine Sanctuary. The Nature Conservancy was instrumental in establishing the Channel Islands National Marine Sanctuary. The islands were inhabited as early as 13,000 years ago, the earliest paleontological evidence of humans in North America. They are the easternmost islands in the Pacific Island group. The Chumash and Tongva Native Americans who lived later on the islands may be the descendants of the original inhabitants, but they were then displaced by Spaniards who used the islands for fishing and agriculture. The U.S. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
San Joaquin Valley
The San Joaquin Valley ( ; es, Valle de San Joaquín) is the area of the Central Valley of the U.S. state of California that lies south of the Sacramento–San Joaquin River Delta and is drained by the San Joaquin River. It comprises seven counties of Northern and one of Southern California, including, in the north, all of San Joaquin and Kings counties, most of Stanislaus, Merced, and Fresno counties, and parts of Madera and Tulare counties, along with a majority of Kern County, in Southern California. Although the valley is predominantly rural, it has densely populated urban centers: Fresno, Bakersfield, Stockton, Modesto, Tulare, Visalia, Hanford, and Merced. The first European to enter the valley was Pedro Fages in 1772. The San Joaquin Valley was originally inhabited by the Yokuts and Miwok peoples. The Tejon Indian Tribe of California is a federally recognized tribe of Kitanemuk, Yokuts, and Chumash indigenous people of California. Their ancestral homeland ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mojave Desert
The Mojave Desert ( ; mov, Hayikwiir Mat'aar; es, Desierto de Mojave) is a desert in the rain shadow of the Sierra Nevada mountains in the Southwestern United States. It is named for the indigenous Mojave people. It is located primarily in southeastern California and southwestern Nevada, with small portions extending into Arizona and Utah. The Mojave Desert, together with the Sonoran, Chihuahuan, and Great Basin deserts, forms a larger North American Desert. Of these, the Mojave is the smallest and driest. The Mojave Desert displays typical basin and range topography, generally having a pattern of a series of parallel mountain ranges and valleys. It is also the site of Death Valley, which is the lowest elevation in North America. The Mojave Desert is often colloquially called the "high desert", as most of it lies between . It supports a diversity of flora and fauna. The desert supports a number of human activities, including recreation, ranching, and military training. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Western Stemmed Tradition
The Western Stemmed Tradition (WST) is a Paleoindian archaeological culture known from the Intermountain West of North America, particularly the Great Basin and the Columbian Plateau, spanning from over 13,000 years Before Present (and thus overlapping with the more well-known Clovis culture) to around 8,500 years Before Present. Unlike Clovis and related traditions, the stone projectile points produced by the Western Stemmed Tradition are unfluted (lacking flakes removed at the base). Other types of tool produced by WST peoples include Chipped-stone crescent, stone crescents. The Western Stemmed Tradition has a wide variability in tool morphology, and is divided up into a number of chronologically separated subtypes, including Haskett (~12,600-11,500 years BP), Cougar Mountain (Great Basin, 11,700-9,000 years BP), Lind Coulee (Columbia Plateau, 12,000-11,200 years BP, named after Lind Coulee Archaeological Site) Parman (Great Basin 11,300-9,000 years BP) Silver Lake (Great Basin, 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sonoma County, California
Sonoma County () is a county (United States), county located in the U.S. state of California. As of the 2020 United States Census, its population was 488,863. Its county seat and largest city is Santa Rosa, California, Santa Rosa. It is to the north of Marin County, California, Marin County and the south of Mendocino County, California, Mendocino County. It is west of Napa County, California, Napa County and Lake County, California, Lake County. Sonoma County comprises the Santa Rosa-Petaluma Metropolitan Statistical Area, which is part of the San Jose, California, San Jose-San Francisco-Oakland, California, Oakland, CA San Jose-San Francisco-Oakland, CA Combined Statistical Area, Combined Statistical Area. It is the northernmost county in the nine-county San Francisco Bay Area region. In California's Wine Country (California), Wine Country region, which also includes Napa, Mendocino, and Lake counties, Sonoma County is the largest producer. It has thirteen approved American Vit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tulare Lake
Tulare Lake () (Spanish: ''Laguna de Tache'', Yokuts: ''Pah-áh-su'') is a freshwater dry lake with residual wetlands and marshes in the southern San Joaquin Valley, California, United States. After Lake Cahuilla disappeared in the 17th century, Tulare Lake was the largest freshwater lake west of the Mississippi River and the second-largest freshwater lake entirely in the United States (as parts of the Great Lakes belong to Canada), based upon surface area. A remnant of Pleistocene-era Lake Corcoran, Tulare Lake dried up after its tributary rivers were diverted for agricultural irrigation and municipal water uses. The lake was named for the tule rush ''(Schoenoplectus acutus)'' that lined the marshes and sloughs of its shores. The lake was part of a partially endorheic basin, at the south end of the San Joaquin Valley, where it received water from the Kern, Tule, and Kaweah Rivers, as well as from southern distributaries of the Kings. It was separated from the rest of the S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Buena Vista Lake
Buena Vista Lake was a fresh-water lake in Kern County, California, in the Tulare Lake Basin in the southern San Joaquin Valley, California. Buena Vista Lake was the second largest of several similar lakes in the Tulare Lake basin, and was fed by the waters of the Kern River. The Kern River's flow went into Buena Vista Lake southwest through the site of Bakersfield via its main distributary channels or south through the Kern River Slough distributary into Kern Lake and then into Buena Vista Lake via Connecting Slough. In times when Buena Vista Lake overflowed it first backed up into Kern Lake making one large lake. When this larger lake overflowed it flowed out through the Buena Vista Slough and Kern River channel northwest of Buena Vista Lake through tule marshland and Goose Lake, into Tulare Lake. Today Lake Webb and Lake Evans occupy the lakebed on the northern shore of the former Buena Vista Lake. Tulamniu Indian Site On Buena Vista Lake south shores was the sit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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