ʻAʻā USGS definition of Pāhoehoe USGS definition of Ropy Pāhoehoe Volcanic landforms of Hawaii USGS hazards associated with lava flows Hawaiian Volcano...

that is visually suggestive of pāhoehoe lava, hence the name. The lamps are designed in a variety of styles and colours. Lava lamps can be associated with...

still-flowing lava stream. Tubes form in one of two ways: either by the crusting over of lava channels, or from pāhoehoe flows where the lava is moving under...

Isles. ʻAʻa advances over solidified pāhoehoe on Kīlauea, Hawaiʻi A pāhoehoe lava fountain on Kīlauea erupts A lava lake in the caldera of Erta Ale, an...

forms lava lakes. Lava tubes are common features of pāhoehoe eruptions. Basaltic tuff or pyroclastic rocks are less common than basaltic lava flows....

(often shortened to volcanics in scientific contexts) are rocks formed from lava erupted from a volcano. Like all rock types, the concept of volcanic rock...

the lava flow can be classified as pāhoehoe or 'a'ā. The two main types of lava field structures are defined as sheet flow lava and pillow lava. Sheet...

flows. Pāhoehoe is characterized by its smooth and often ropey or wrinkly surface and is generally formed from more fluid lava flows. Pāhoehoe flows are...

divided into two types by their structural characteristics. Pahoehoe lava is a relatively smooth lava flow that can be billowy or ropey. They can move as one...

types of basaltic lava: ʻaʻa and pāhoehoe. ʻAʻa lava presents a rough texture in the shape of broken blocks (clinkers). Pāhoehoe lava is recognized by...

surface. Lava tubes are typically associated with extremely fluid pahoehoe lava. Gravity on mars is about 38% that of Earth's, allowing Martian lava tubes...

48 km) across atop a small lava shield. Much of the southern slope (above the modern town of Kailua-Kona) consists of lava flows covered by a layer of...

eruptions that covers large stretches of land or the ocean floor with basalt lava. Many flood basalts have been attributed to the onset of a hotspot reaching...

Different forms of effusive lava can provide different hazards. Pahoehoe lava is smooth and ropy while Aa lava is blocky and hard. Lava flows normally follow...

ridge. The floor of the northern crater is covered with lava flows that resemble pahoehoe lavas. Small cones with sizes ranging from 2 metres (6 ft 7 in)...

2 mi) to the south-west of Sundhnúkur. The lava from this period was a mixture of pāhoehoe and ʻaʻā lava, indicative of varying eruption dynamics. Additionally...

temperature of a Pāhoehoe lava flow can be estimated by observing its color. The result agrees well with other measurements of temperatures of lava flows at about...

orientation of the ancient magnetic field preserved by magnetite in ancient lava flows sampled at four seamounts: this evidence from paleomagnetism shows...

carbonatite lava which erupts from the Ol Doinyo Lengai volcano in Tanzania within the East African Rift of eastern Africa. Natrocarbonatite lavas were first...

percent of the lava in the Lava Beds Monument is basaltic. There are primarily two kinds of basaltic lava flows: pahoehoe and ʻaʻā. Pahoehoe is smooth, often...

A lava channel is a stream of fluid lava contained within zones of static (i.e., solid and stationary) lava or lava levees. The initial channel may not...

direction under the lava field, and surfaced in the far southeastern corner of the site. There is also evidence that later pāhoehoe lava lobes ran underneath...

Lava tubes are the most common and extensive type of lava cave. Lava tubes usually form in pahoehoe lava flows, though exceptions exist. As the lava is...

Pu’u’uao erupted from the sea floor. The extremely hot and fast flowing pāhoehoe lava created a flat triangle of land which eventually cooled and connected...

andesite lava flows. They flowed across the Doğubeyazıt plain and along the southerly flowing Sarısu River. These lava flows formed black ʻaʻā and pāhoehoe lava...

lava outflow channel, which created a lava tube. The lava tube allowed the fluid pahoehoe lava to retain heat and flow long distances. In less than a...

In January, 2024 lava from this eruption destroyed 3 houses in the nearby town of Grindavík. The smooth flowing basaltic lava pāhoehoe is known in Icelandic...

pāhoehoe lava flows which originating from the Cabeço Bravo parasitic cone about 500 to 1500 years ago. The caves are a group of interconnected lava tubes...

surrounded by fresh lava. Toward the sea the road crosses a pāhoehoe lava flow. In the early 2000s, steam from lava tubes could be seen. Lava flows from the...

rapidly cooled cryolava, similar to pillow lava, or from compression in a manner similar to pāhoehoe lava. The sinuous radial trenches in Wright Mons's...