Hotspot (geology) - Wikipedia
In geology, hotspots (or hot spots) are volcanic locales thought to be fed by underlying mantle that is anomalously hot compared with the surrounding mantle. [1] Examples include the Hawaii , Iceland , and Yellowstone hotspots .
Hotspots - Geology (U.S. National Park Service)
Feb 11, 2020 · A hotspot is a large plume of hot mantle material rising from deep within the Earth. A line of volcanoes develops as a plate moves over a hotspot, much as a line of melted wax forms as a sheet of waxed paper is moved slowly over a burning candle.
Plate Tectonics and the Hawaiian Hot Spot - Geology.com
According to Wilson, the distinctive linear shape of the Hawaiian-Emperor Chain reflects the progressive movement of the Pacific Plate over a "deep" and "fixed" hot spot. In recent years, scientists have been debating about the actual depth (s) …
Hotspot | Volcanic Activity, Plate Tectonics & Magma | Britannica
hotspot, region of Earth’s upper mantle that upwells to melt through the crust to form a volcanic feature. Most volcanoes that cannot be ascribed either to a subduction zone or to seafloor spreading at mid-ocean ridges are attributed to hotspots.
What is a hotspot and how do you know it's there?
Scientists don’t fully understand how and why hotspots occur, and there is vigorous scientific debate about their origins. A frequently-used hypothesis suggests that hotspots form over exceptionally hot regions in the mantle, which is the hot, …
Hot Spot Volcanism - Education
Apr 30, 2024 · Hot spot volcanism is unique because it does not occur at the boundaries of Earth’s tectonic plates, where all other volcanism occurs. Instead it occurs at abnormally hot centers known as mantle plumes.
2.7: Hotspots - Geosciences LibreTexts
Hotspots are the only types of volcanism not associated with subduction or rifting zones at plate boundaries; they seem totally disconnected from any plate tectonics processes, such as earthquakes. However, there are relationships between hotspots and plate tectonics.
Hotspot (geology) - Simple English Wikipedia, the free …
In geology, a hotspot or hot spot is a portion of the Earth's surface which is volcanic. This may be caused by a rising mantle plume or some other cause. [2] Hotspots may be far from tectonic plate boundaries. A volcanic hotspot is where magma pushes up from deep in the Earth's crust or mantle, and creates a volcano. The Earth's plates may move ...
Hotspots [This Dynamic Earth, USGS]
More than a hundred hotspots beneath the Earth's crust have been active during the past 10 million years. Most of these are located under plate interiors (for example, the African Plate), but some occur near diverging plate boundaries.
Hotspot (geology) - New World Encyclopedia
In geology, a hotspot is an area in the Earth's mantle where a column of hot magma rises up to melt through the crust, resulting in volcanic activity. The term hotspot is also used when referring to the location on the Earth's surface where such volcanism has been taking place.