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Lahars from the 1985 Nevado del Ruiz eruption in Colombia caused the Armero tragedy, burying the city of Armero under 5 metres (16 ft) of mud and debris and killing an estimated 23,000 people. [11] A lahar caused New Zealand's Tangiwai disaster, [12] where 151 people died after a Christmas Eve express train fell into the Whangaehu River in 1953 ...
Gear of the Antikythera mechanism, a mechanical computer from the 2nd century BCE showing a previously unknown level of complexity. An out-of-place artifact (OOPArt or oopart) is an artifact of historical, archaeological, or paleontological interest to someone that is claimed to have been found in an unusual context, which someone claims to challenge conventional historical chronology by its ...
The following is a list of the world's oldest surviving physical documents. Each entry is the most ancient of each language or civilization. For example, the Narmer Palette may be the most ancient from Egypt, but there are many other surviving written documents from Egypt later than the Narmer Palette but still more ancient than the Missal of Silos.
A follow-up study with an optical spectrum obtained with the ANU Siding Spring 2.3 meter telescope showed a Li-rich M5-star with strong Hα emission. The data is consistent with a low accretion of 10 −10 M ☉ yr −1. [6] ALMA observations did not detect any carbon monoxide, but unresolved 1.3 mm dust emission was detected. [1]
Sabu's grave was discovered on January 19, 1936, by the British archaeologist Walter Bryan Emery.It is a mastaba tomb that consists of seven chambers. In Room E, the central burial chamber, the disk was found in a central location right next to Sabu's skeleton, which was originally buried in a wooden coffin. [4]
In planetary geology, the term "ejecta" includes debris ejected during the formation of an impact crater. When an object massive enough hits another object with enough force, it creates a shockwave that spreads out from the impact. The object breaks and excavates into the ground and rock, at the same time spraying material known as impact ejecta.
Robert J. Dunham published his classification system for limestone in 1962. [2] The original Dunham classification system was developed in order to provide convenient depositional-texture based class names that focus attention on the textural properties that are most significant for interpreting the depositional environment of the rocks.
Mount Papandayan is a complex stratovolcano, located in Garut Regency, to the southeast of the city of Bandung in West Java, Indonesia. It is about 15 kilometres (9.3 mi) to the southwest of the town of Garut. At the summit, there are four large craters which contain active fumarole fields. An eruption in 1772 caused the northeast flank to ...