3/8/2024 0 Comments Az pick 3 past winning numbers![]() Ībout 525 million years ago, when northern Arizona was at the bottom of a shallow sea, a thin layer of sediment called the Tapeats Sandstone was deposited over the Cleopatra tuff. The gap in the rock record has been called the Great Unconformity. Evidence from the Grand Canyon, further north in Arizona, suggests that thick layers of sediment may have been laid down atop the ore bodies and later eroded away. No record exists for the next 1.2 billion years of Jerome's geologic history. The collisions, which welded the plates to the continent, folded the Cleopatra tuff in such a way that the two ore bodies ended up on opposite sides of a fold called the Jerome anticline. About 50 million years after they were deposited, the tectonic plate of which they were a part collided with another small plate and then with the proto-North American continent. These ore bodies formed in different places along a ring fault in the caldera. The accumulating sulfide deposits from two such vents formed the ore bodies, the United Verde and the UVX, most important to Jerome 1.75 billion years later. When the hot solution emerged from a hydrothermal vent at the bottom of the ocean, its dissolved minerals solidified and fell to the sea floor. Heated by rising magma to 660 ☏ (350 ☌) or more, the water was forced upward again, chemically altering the rocks it encountered and becoming rich in dissolved minerals. After the eruption, cold sea water entered Earth's crust through cracks caused by the eruption. Created by a massive caldera eruption in Precambrian -elsewhere more narrowly identified as Proterozoic -seas south of what later became northern Arizona, the Cleopatra tuff was then part of a small tectonic plate that was moving toward the proto-North American continent. Most of Cleopatra Hill, the rock formation upon which Jerome was built, is 1.75 billion years old. Geology Azurite, a copper-bearing mineral, from the United Verde Mine East of Jerome at the base of the hills are the Verde Valley and the communities of Clarkdale and Cottonwood, site of the nearest airport. Bitter Creek, a tributary of the Verde River, flows intermittently through Jerome. Jerome State Historic Park is in the town itself. Woodchute Wilderness is about 3 miles (5 km) west of Jerome, and Mingus Mountain, at 7,726 feet (2,355 m) above sea level, is about 4 miles (6 km) south of town. The town lies within the Prescott National Forest at an elevation of more than 5,000 feet (1,500 m). The town is in Arizona's Black Hills, which trend north–south. Jerome is about 100 miles (160 km) north of Phoenix and 45 miles (72 km) southwest of Flagstaff along Arizona State Route 89A between Sedona to the east and Prescott to the west. By the early 21st century, it had art galleries, coffeehouses, restaurants, a state park, and a local museum devoted to mining history. Jerome became a National Historic Landmark in 1967. Efforts to save the town from oblivion succeeded when residents turned to tourism and retail sales. As the ore deposits ran out, the mines closed for good in 1953, and the population dwindled to fewer than 100. Production at the mines, always subject to fluctuations, boomed during World War I, fell thereafter, rose again, then fell again during and after the Great Depression. Jerome made news in 1917 when labor unrest involving the Industrial Workers of the World (IWW) led to the expulsion at gunpoint of about 60 IWW members, who were loaded on a cattle car and shipped west. In total, the copper deposits discovered in Jerome's vicinity were among the richest ever found. The United Verde Extension UVX Mine, owned by James Douglas Jr., depended on the other huge deposit. Clark, extracted ore bearing copper, gold, silver, and other metals from the larger of the two. In the late 19th century, the United Verde Mine, developed by William A. Tectonic plate movements, plate collisions, uplift, deposition, erosion, and other geologic processes eventually exposed the tip of one of the ore bodies and pushed the other close to the surface, both near Jerome. ![]() The town owes its existence mainly to two ore bodies that formed about 1.75 billion years ago along a ring fault in the caldera of an undersea volcano. ![]() It is now known for its tourist attractions, such as its " ghost town" status and local wineries. As of the 2010 census, its population was 444. Supported in its heyday by rich copper mines, it was home to more than 10,000 people in the 1920s. It is about 100 miles (160 km) north of Phoenix along State Route 89A between Sedona and Prescott. Founded in the late 19th century on Cleopatra Hill overlooking the Verde Valley, Jerome is more than 5,000 feet (1,500 m) above sea level. Jerome is a town in the Black Hills of Yavapai County in the U.S. Population density has been calculated by dividing population by land area and rounding to the nearest hundred per square mile.
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