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The year 2005 in archaeology involved some significant events.
Strontium is a chemical element; it has symbol Sr and atomic number 38. An alkaline earth metal, strontium is a soft silver-white yellowish metallic element that is highly chemically reactive. The metal forms a dark oxide layer when it is exposed to air. Strontium has physical and chemical properties similar to those of its two vertical neighbors in the periodic table, calcium and barium. It occurs naturally mainly in the minerals celestine and strontianite, and is mostly mined from these.
The rubidium-strontium dating method (Rb-Sr) is a radiometric dating technique, used by scientists to determine the age of rocks and minerals from their content of specific isotopes of rubidium (87Rb) and strontium. One of the two naturally occurring isotopes of rubidium, 87Rb, decays to 87Sr with a half-life of 49.23 billion years. The radiogenic daughter, 87Sr, produced in this decay process is the only one of the four naturally occurring strontium isotopes that was not produced exclusively by stellar nucleosynthesis predating the formation of the Solar System. Over time, decay of 87Rb increases the amount of radiogenic 87Sr while the amount of other Sr isotopes remains unchanged.
Below are notable events in archaeology that occurred in 1937.
The year 2004 in archaeology included many events, some of which are listed below.
Tel Megiddo is the site of the ancient city of Megiddo, the remains of which form a tell, situated in northern Israel near Kibbutz Megiddo, about 30 kilometres (19 mi) south-east of Haifa, at the western edge of Jezreel Valley. Megiddo is known for its historical, geographical, and theological importance, especially under its Greek name Armageddon. During the Bronze Age, Megiddo was an important Canaanite city-state and during the Iron Age, a royal city in the Kingdom of Israel.
Chaco Culture National Historical Park is a United States National Historical Park in the American Southwest hosting a concentration of pueblos. The park is located in northwestern New Mexico, between Albuquerque and Farmington, in a remote canyon cut by the Chaco Wash. Containing the most sweeping collection of ancient ruins north of Mexico, the park preserves one of the most important pre-Columbian cultural and historical areas in the United States.
Tel Hazor, also Chatsôr, translated in LXX as Hasōr, named in Arabic Tell Waqqas / Tell Qedah el-Gul, is an archaeological tell at the site of ancient Hazor, located in Israel, Upper Galilee, north of the Sea of Galilee, in the northern Korazim Plateau. From the Middle Bronze Age to the Iron Age, Hazor was the largest fortified city in the region and one of the most important in the Fertile Crescent. It maintained commercial ties with Babylon and Syria, and imported large quantities of tin for the bronze industry. In the Book of Joshua, Hazor is described as "the head of all those kingdoms". Though some scholars do not consider the Book of Joshua to be historically accurate, archaeological excavations have emphasized its importance.
The year 1976 in archaeology involved some significant events.
Below are notable events in archaeology that occurred in 1907.
The alkaline earth metal strontium (38Sr) has four stable, naturally occurring isotopes: 84Sr (0.56%), 86Sr (9.86%), 87Sr (7.0%) and 88Sr (82.58%). Its standard atomic weight is 87.62(1).
Pueblo Bonito is the largest and best-known great house in Chaco Culture National Historical Park, northern New Mexico. It was built by the Ancestral Puebloans who occupied the structure between AD 828 and 1126.
Cowboy Wash is a group of nine archaeological sites used by Ancestral Puebloans in Montezuma County, southwestern Colorado, United States. Each site includes one to three pit houses, and was discovered in 1993 during an archaeological dig. The remains of twelve humans were found at one of the pit house sites, dating to the 12th century.
Richard Wetherill (1858–1910), a member of a Colorado ranching family, was an amateur archaeologist who discovered, researched and excavated sites associated with the Ancient Pueblo People. He is credited with the rediscovery of Cliff Palace in Mesa Verde in Colorado and was responsible for initially selecting the term Anasazi, Navajo for ancient enemies, as the name for these ancient people. He also excavated Kiet Seel ruin, now in Navajo National Monument in northeastern Arizona, and Pueblo Bonito in Chaco Canyon, New Mexico.
The year 1982 in archaeology involved some significant events.
A timeline of Chacoan history includes Chaco Culture National Historical Park, Aztec Ruins National Monument, Twin Angels Pueblo, Casamero Pueblo, Kin Nizhoni, Pierre's Site, and Halfway House.
Megiddo church, near Tel Megiddo, Israel, is an archaeological site which preserves the foundations of one of the oldest church buildings ever discovered by archaeologists, dating to the 3rd century AD. The ‘Megiddo Church’, as the room became known, was dated to circa 230 AD on the basis of pottery, coins, and the inscriptional style. The site’s abandonment, circa 305 AD, is evident in the purposeful covering of the mosaic, and relates well to the crisis of 303 AD, when the Christian communities of Judea experienced the Diocletianic Persecution.
The Ancestral Puebloans, also known as the Anasazi, were an ancient Native American culture that spanned the present-day Four Corners region of the United States, comprising southeastern Utah, northeastern Arizona, northwestern New Mexico, and southwestern Colorado. They are believed to have developed, at least in part, from the Oshara tradition, which developed from the Picosa culture. The people and their archaeological culture are often referred to as Anasazi, meaning "ancient enemies", as they were called by Navajo. Contemporary Puebloans object to the use of this term, with some viewing it as derogatory.
Sajsi is the name of an ancient lake in the Andes
Jay Quade is an American geochemist and geologist. He is known for pioneering research applying geochemical isotopic methods for investigations of tectonics, global climate change, and the paleontology of Darwinian evolution.