Hawaiite - Wikipedia
WEBHawaiite is an aphanitic (fine-grained) volcanic rock produced by rapid cooling of lava moderately poor in silica and enriched in alkali metal oxides (potassium oxide plus sodium oxide). It is often impractical to determine the mineral composition of such a fine-grained rock, and so hawaiite is defined chemically.
Hawaiite: volcanic rock - pictures and overview - Sandatlas
WEBHawaiite is a volcanic rock that resembles basalt. It is generally somewhat lighter gray in color than basalt which usually is either black or dark gray. Hawaiite often contains olivine phenocrysts. Hawaiite from Hawaii (Mauna Kea lava flow in NW part of the island few kilometers from Hapuna Bay). Width of the sample is 12 cm.
Volcano Watch — Drive along Saddle Road reveals outstanding volcanic ...
WEBNov 16, 2017 · The lumpy, grassy landscape to the right of the road results from the eruption of hawaiite, a unique type of lava that is notably stiffer and richer in silica and potassium than Mauna Loa flows. The numerous upslope cones belong to the Pu‘uloa volcanic field, which last erupted about 4,600 years ago and was the source of the …
Hawaiite Rock | History | Origin - Compare Nature
WEBHawaiite is volcanic rock that resembles basalt. It is an olivine basalt with intermediate composition between alkali olivine and mugearite. Hawaiite is available in black, brown, light to dark grey colors.
Photo Glossary: Hawaii's Amazing Volcanic Rocks - Live Science
WEBMay 14, 2013 · Here's a guide to some of the weird and wonderful stones that result from the active lava flows in Hawaii, as well as a description of different types of volcanic rocks.
Rocks of Hawaii - Earth@Home
WEBApr 28, 2022 · In Hawai‘i, younger igneous rocks dominate the landscape, and basaltic lava flows are part of almost any vista. On the eight main Hawaiian Islands (see map above), the oldest exposed flows on the islands of Ni‘ihau, Kaua‘i, and O‘ahu are still within the Pliocene Epoch of the Neogene Period.
What Is Hawaiite | Hawaiite Features - rocks.comparenature.com
WEBHawaiite is opaque in nature. Know all about Hawaiite, What is Hawaiite, its composition, features, facts and reserves in next sections.
Geology and History of Mauna Kea | U.S. Geological Survey - USGS.gov
WEBMauna Kea, the highest peak on the Island of Hawai‘i (4,207.3 m, 13,803 ft), is a shield volcano built upon the southern flank of Kohala Volcano's eastern rift zone.
Hawaiite - WikiMili, The Best Wikipedia Reader
WEBHawaiite is an olivine basalt with a composition between alkali basalt and mugearite. It was first used as a name for some lavas found on the island of Hawaii.
Hualālai - Wikipedia
WEBStructural features. An expedition down a lava conduit in Hualālai volcano. Hualālai stands at 8,271 ft (2,521 m) with a prominence of 3,071 ft (936 m). [2] It is the westernmost of the five major volcanoes that form the island of Hawaiʻi. [1]
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