A flood basalt is the result of a giant volcanic eruption or series of eruptions that coats large stretches of land or the ocean floor with basaltlava. Flood basalt provinces such as the Deccan Traps of India are often called traps, which derives from the characteristic stairstep geomorphology of many associated landscapes. Eleven distinct flood basalt episodes occurred in the past 250 million years, resulting in large volcanic provinces, creating plateaus and mountain ranges on Earth. Large igneous provinces have been connected to five mass extinction events, and may be associated with bolide impacts.
Formation
The formation and effects of a flood basalt depend on a range of factors, such as continental configuration, latitude, volume, rate, duration of eruption, style and setting (continental vs. oceanic), the preexisting climate state, and the biota resilience to change.
One proposed explanation for flood basalts is that they are caused by the combination of continental rifting and its associated decompression melting, in conjunction with a mantle plume also undergoing decompression melting, producing vast quantities of a tholeiitic basalticmagma. These have a very low viscosity, which is why they 'flood' rather than form taller volcanoes. Another explanation is that they result from the release, over a short time period, of melt that has accumulated in the mantle over a long time period.
For example, volcanic eruptions flooded parts of the surface with lava, producing rocks known as mare basalt -- which occupy over 30 per cent of the near side of the Moon, but less than 2 per cent of its far side.
Researchers claimed that volcanic eruptions would have flooded parts of the surface with lava, producing rocks known as mare basalts, which are more common on the near side, covering ~30% of the surface compared to 2% of the far side.
For example, volcanic eruptions flooded parts of the surface with lava, producing rocks known as mare basalt -- which occupy over 30 percent of the near side of the moon, but less than 2 percent of its far side.
For example, volcanic eruptions flooded parts of the surface with lava, producing rocks known as mare basalt -- which occupy over 30 percent of the near side of the moon, but less than 2 percent of its far side.
The Zebra prospect is located 1,500 metres northwest of the FloodZone and 150 metres north of the Gnu Zone and covers a tight fold nose within the gabbro/sediment/basalt package of the ULU anticline.
It coincided with floods of basalt lava that covered a large area of the Northwestern US, creating what are called the “Columbia River Basalts.” This timing suggests that volcanic CO2 was the cause of the warming.
The mission marks another moon lander developed by a private company under NASA's Commercial Lunar Payload Services initiative ... "Mare Crisium was created by early volcanic eruptions and flooded with basaltic lava more than 3 billion years ago.
It was raining and the earth flooded ...Spokane ... Today, the scientists and geologists explain the glaciers, lakes and the Missoula floods that broke through to flood Spokane and create the basalt rock formations that we see along Interstate 90 ... Yes. Yes.
“The variety of geology that you can see here is amazing,” George, a longtime geologist, said before launching into a description of the unique basalt flows, evidence of the Missoula flood and other natural features the park is home to.
The link between massive flood basalt volcanism and the end-Triassic (201 million years ago) mass extinction is commonly accepted ... emission of mercury from flood basalt volcanism," Wang Zheng explains.
This corresponds to the occurrence of the Columbia RiverFlood Basalt and the rapid global seafloor spreading, a period when massive amounts of deep-sourced carbon were released into the atmosphere ... More information ... DOI. 10.1016/j.scib.2023.12.052 ... ....
... explains to MarbleCharter School students how a recently installed center pivot irrigation system uses about half the water the previous flood irrigation system used at Glassier Open Space in Basalt.
The Moon is practically begging to be explored, and the momentum to do so is building ... But there are other efforts underway ... ImageCredit. LunarLeaper ... It’s a volcanic region covered in basalt floods from ancient volcanic activity ... Image Credit ... .
