subsurface investigation
51Cone penetration test — A CPT truck operated by the USGS. The cone penetration test (CPT) is an in situ testing method used to determine the geotechnical engineering properties of soils and delineating soil stratigraphy. It was initially developed in the 1950s at the… …
52Chemical biology — is a scientific discipline spanning the fields of chemistry and biology that involves the application of chemical techniques and tools, often compounds produced through synthetic chemistry, to the study and manipulation of biological systems.… …
53Quecreek Mine Rescue — The Quecreek Mine Rescue took place when nine miners were trapped underground for over 78 hours, July 24 ndash;28, 2002. All nine miners were rescued.Accident and rescueOn July 24, 2002, coal miners at the Quecreek Mine in Lincoln Township,… …
54Rosetta (sonde spatiale) — Pour les articles homonymes, voir Rosetta. Rosetta …
55El Niño-Southern Oscillation — El Niño redirects here. For other uses, see El Niño (disambiguation). ENSO redirects here. For other uses, see Enso (disambiguation). The 1997 El Niño observed by TOPEX/Poseidon. The white areas off the tropical coasts of South and North America… …
56Galilean moons — Montage of Jupiter s four Galilean moons, in a composite image comparing their sizes and the size of Jupiter. From top to bottom: Io, Europa, Ganymede, Callisto The Galilean moons are the four moons of Jupiter discovered by Galileo Galilei in… …
57Transform fault — (the red lines) A transform fault or transform boundary, also known as conservative plate boundary since these faults neither create nor destroy lithosphere, is a type of fault whose relative motion is predominantly horizontal in either sinistral …
58Cold seep — Marine habitats Tube worms are among the dominant species in one of four cold seep community types in the Gulf of Mexico. Littoral zone …
59Kelp forest — Kelp forests are underwater areas with a high density of kelp. They are recognized as one of the most productive and dynamic ecosystems on Earth.Mann, K.H. 1973. Seaweeds: their productivity and strategy for growth. Science 182: 975 981.] Kelp… …
60Landfill gas monitoring — is the process by which gases that are released from landfill are electronically monitored.Landfill gas production results from chemical reactions and microbes acting upon the waste as the putrescible materials begins break down. [Burdekin, O.… …
