View allAll Photos Tagged Basalt
Basalt from the Jurassic of New Jersey, USA. (public display, Geology Department, Wittenberg University, Springfield, Ohio, USA)
Igneous rocks form by the cooling & crystallization of hot, molten rock (magma & lava). If this happens at or near the land surface, or on the seafloor, they are extrusive igneous rocks. If this happens deep underground, they are intrusive igneous rocks. Most igneous rocks have a crystalline texture, but some are clastic, vesicular, frothy, or glassy.
Basalt is a common extrusive igneous rock. It is the dominant rock in Earth’s upper oceanic crust. Black lava rocks seen at famous volcanoes such as Mt. Kilauea in Hawaii and Mt. Etna in Sicily are composed of basalt. Basalt has a mafic chemistry. This refers to igneous rocks that are generally dark-colored, have 45-55% silica (= SiO2 chemistry) (it has also been defined as 45 to 52% silica), are rich in iron (Fe), magnesium (Mg), & calcium (Ca), and are dominated by the minerals plagioclase feldspar and pyroxene.
Basalts have an aphanitic texture (finely crystalline; all or almost all crystals are <1 mm in size), the result of relatively quick cooling of lava. Some basalts are porphyritic or coarsely crystalline if the lava flow took time to cool & solidify (e.g., some Proterozoic basalt lavas in the Keweenaw Peninsula of Michigan's Upper Peninsula).
The sample shown here consists of numerous pieces of "spatter" - blebs of basalt lava spewed from an erupting volcanic vent. Some small volcanoes, called "spatter cones", are entirely composed of this material.
Locality: unrecorded/undisclosed
columnar basalt formations at Cape Stolbchaty on the eastern shoreline of Kunashir (Kunashiri) Island, the southernmost of the Kuril (Kurile) Islands, a chain of volcanic islands crossing the pacific between the northern tip of japan and the southern tip of kamchatka (russia)
[currently part of russia but this is disputed by japan who see the 4 southern islands as part of its northern territories]
Basalt is a widespread igneous rock, consisting mainly of feldspar and pyroxene and usually occurring as lava flows but also in small sheet-like intrusions (sills and dykes). Because of its relatively low viscosity, basaltic magma can cover large areas and is often called flood basalt. The upper specimen here comes from the Trotternish Peninsula of the Isle of Skye where, 60 million years ago, basalt flowed from volcanoes cover much of the region. It has gas bubble holes which have been subsequently filled with zeolite. Such filled-in holes are called amygdales and the empty holes are vesicles. That's what we see in the lower specimen from Ascension Island in the Atlantic. Typical gaseous content during volcanic eruptions are steam, carbon dioxide and sulphur dioxide. Both rocks contain a fair amount of the mineral magnetite and were thus thermo-remnantly magnetised when they cooled. As a result they affect a compass needle.
A summer storm in the distance rapidly approaching! The "High Desert" of New Mexico - The Land Of Enchantment. A unique and mystifying land covered by black basalt terrain. Photo taken with a Nikon D70s DSLR camera using an AF-S DX Zoom-NIKKOR 18-70mm f/3.5-4.5G IF-ED lens.
This shot shows only basalt, fir trees and two brave humans. This is on Oregon Hwy 30 in the Columbia River Gorge at Rowena Crest Viewpoint. You can see where the rock gave away in a landslide that had closed the road below. So these guys had to go down and knock off loose rock left by the slide as part of the cleanup. I would hope they get hazard pay for this.
Classic scoria basalt of the Ice Springs lava flow, only 600 years old. Youngest volcanic rock in Utah.
Our BALI MOON model is a rectangular single vessel sink stone - 23-2/3" x 15-2/3" x 4-1/3" made in genuine interior decoration gray andesite ( basalt). The "Exceptional" cut in the block without any comparison with plastic and other chemical resin market often unaffordable.
The outstanding opportunity to make your world unique! Add great value to your home by installing LivingRoc Creations and tell your stone story through the years of conception. Could you imagine one day installing a single vessel sink made from gray basalt, sought after by specialists around the world? We put the extra into the extraordinary by using this noble material.
You will definitely not let anyone feel indifferent with this 100% natural stone unique in the US and exclusively available on Living'ROC.net. This creation will give your bathroom a stunning look. Its gray color and its irresistible look ( trendy concrete look) make it one of the most incredible bathroom sink of the moment.
It is a superb design vanity vessel sink with beautiful, pure and elegant lines. BALI MOON will add class to your bathroom. Our talented masons work shows BALI MOON perfect curves, its Asian-style look and the quality of handcrafted work. BALI MOON's generous perfect proportion will bring you great comfort. It is double waterproofed so the maintenance is easy. We have selected only the most beautiful stones for an exceptional quality.
This vessel sink is ready to use, sitting on a vanity counter top and Highly resistant to chipping and scratching, Withstands hot temperatures, Tolerant to very high temperature changes. All exposed parts of the stone have been double waterproofed.
At LivingRoc we have chosen the most beautiful stones. All our basins are made from high quality, pure genuine materials that will last for years to come. Granite, Basalt, Marble are materials perfectly adapted to bathroom use.
Our creation is delivered without an overflow drain (not included) - every US drains models you can find on the market will fit perfectly on Living'ROC vessel sink. This model is ready to use over the countertop.
talus slopes of Columbia River Basalt, Yakima Canyon, WA
my lichen photos by genus - www.flickr.com/photos/29750062@N06/collections/7215762439...
my photos arranged by subject, e.g. mountains - www.flickr.com/photos/29750062@N06/collections
A volcanic extrusion above the Boise River east of town. One hundred and fifty years ago the Oregon Trail ran up there near the edge along this canyon.
Gadara
a Greco-Roman city
--- described by Greek historian, Polybius, in 218 B.C.
--- became a city of the Roman Decapolis in 63 B.C.
--- birthplace of Meleager, one of the most admired Greek poets, in the 1st century B.C.
--- likely place where Jesus drove demons out of a man into swine in the 1st century A.D.
Umm Qais, Irbid Governorate
Jordan
122312
(screen capture video from the Litli Hrútur Norður web camera)
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A basaltic fissure eruption commenced in the late afternoon, local time, on 10 July 2023, next to a hill called Litli Hrútur in southwestern Iceland's Reykjanes Peninsula. This followed a week of high seismic activity, with well over 7,000 earthquakes reported. A series of small spatter buildups (cones) developed along the fissure. Some of these became less active as the eruption continued and a decent-sized cone formed since the initial fissure eruption. Collapse events along the inner wall and top margin of the cone occur occasionally.
The left third of the cone collapsed in the early morning on 19 July 2023, followed by large volumes of lava pouring out from the breach. Seen here is the cone on 23 July 2023 - the cone's walls have been restored by spatter buildup.
Update: the eruption ceased in early August 2023.
Iceland is a volcanic island in the North Atlantic Ocean between Britain and Greenland. It is situated on the Mid-Atlantic Ridge, along which the North American Plate and the Eurasian Plate separate and new oceanic crust forms. Seismicity in the area is due to subsurface magma movement from hotspot (mantle plume) activity, as well as seafloor spreading (= tectonic divergence). Magma reaching the surface results in volcanic eruptions. Some famous eruptions in Iceland include Laki (1783), Surtsey (1963-1967), Eldfell (1973), Hekla (1991, 2000), Eyjafjallajökull (2010), and Grimsvötn (2011).
These basalt columns were a request by the clients, and we surrounded them with a sea of dwarf Blue Chalk Sticks, Senecio serpens.
A boulder-strewn slope mauka (upslope) from the Lahaina Pali Trail, Maui, Hwai`i. A recent fire swept the area, making the rocky nature of the slope much more obvious.
(screen capture video from the Litli Hrútur Norður web camera)
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A basaltic fissure eruption commenced in the late afternoon, local time, on 10 July 2023, next to a hill called Litli Hrútur in southwestern Iceland's Reykjanes Peninsula. This followed a week of high seismic activity, with well over 7,000 earthquakes reported. A series of small spatter buildups (cones) developed along the fissure. Some of these became less active as the eruption continued and a decent-sized cone formed since the initial fissure eruption. Collapse events along the inner wall and top margin of the cone occur occasionally.
The left third of the cone collapsed in the early morning on 19 July 2023, followed by large volumes of lava pouring out from the breach. Seen here is the cone on 23 July 2023 - the cone's walls have been restored by spatter buildup.
Update: the eruption ceased in early August 2023.
Iceland is a volcanic island in the North Atlantic Ocean between Britain and Greenland. It is situated on the Mid-Atlantic Ridge, along which the North American Plate and the Eurasian Plate separate and new oceanic crust forms. Seismicity in the area is due to subsurface magma movement from hotspot (mantle plume) activity, as well as seafloor spreading (= tectonic divergence). Magma reaching the surface results in volcanic eruptions. Some famous eruptions in Iceland include Laki (1783), Surtsey (1963-1967), Eldfell (1973), Hekla (1991, 2000), Eyjafjallajökull (2010), and Grimsvötn (2011).
More recent photos from the Grand Coulee along the broad 'canyon' carved out by the Ice Age Floods through the Columnar Basalt of multiple lava flows covering most of Eastern Washington.
Near Steamboat Rock State Park, the Line between the original Granite Landscape of land forms existing before the Lava Flows contrasts the Columns.
Vesicular Basalt found all around A Mountain in Tucson, Arizona.
The magma that formed this rock popped out of the ground just fast enough for the dissolved gasses to vaporize in the decompressed hot goo and then cooled fast enough to retain the holes formed by the gas pockets.
Think of opening a bottle of beer only the liquid is magma.
vesicular basalt, Whisky Dick Wildlife Area, WA
view original size
Acarospora fuscata, Pleopsidium flavum, Rhizoplaca melanophthalma, Xanthoria elegans (Rusavskia elegans), Xanthoria mendozae (Xanthomendoza mendozae),
lichen photos arranged by genus - www.flickr.com/photos/29750062@N06/collections/7215762439...
my photos arranged by subject - www.flickr.com/photos/29750062@N06/collections/
Our LEXA model is a square single drop in sink - 17-3/4" x 17-3/4" x 4-3/4" made in genuine interior decoration trendy absolute Mongolia black with a simple and useful style, carved from a block of basalt. Its shape, matte finish, without forgetting its very convenient slope give LEXA harmony and serenity. Doubly waterproofed by our care LEXA is ready to use. You will definitely not let anyone feel indifferent with this 100% natural stone unique in the US and exclusively available on Living'ROC.net.
Could you imagine one day installing a single drop in sink made from the purest black basalt in the world sought after by specialists around the world? We put the extra into the extraordinary by using this noble material. The outstanding opportunity to make your world unique! Add great value to your home by installing LivingRoc Creations. With a simple and useful style, carved from a block of basalt. Its shape, matte finish, without forgetting its very convenient slope give LEXA harmony and serenity. Doubly waterproofed by our care LEXA is ready to use.
if you wish to standardize your project, you can choose among a wide range of black shower bases in black granite or black mongolia basalt (very similar color) carved from the same material (similar tones and finishes) as for example black granite models Spacium Shadow, Palaos Shadow, Quasar Shadow or Dalaos Shadow and mongolia black models Serena Black, Corail Black.
Our creation is delivered without an overflow drain (not included) - every US drains models you can find on the market will fit perfectly on Living'ROC vessel sink. This model is ready to use over the countertop.
The photos you see online have been taken with extreme care by our Founder CEO - Florent LEPVREAU, because without them we would not be one of the natural stone business key player of the online European continent. Once you have encountered the product in your home you will always have pure happiness for the love of the materials. It will be beyond your expectations because what you see online at livingroc.net is what you will receive. This is why we always guarantee a degree of quality (Grade A) and impeccable finish as can attest with the reviews filed by our customers. We also draw your attention to the fact that veining, flames, small variations of colors and various stone particularities make all the charm of the stone and distinguish it from non-natural materials! Simply our living'ROC style.
(public domain, screen capture video from the V1 web camera on the northwestern rim of Kilauea Volcano's summit caldera)
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Mt. Kilauea is the world’s most active volcano. It sits atop the Hawaii Hotspot in the central Pacific Ocean and had a decades-long eruption from 1983 to 2018. Eruptive activity started up again in December 2020 and continued into 2025. Kilauea lavas are basaltic in composition, but the physical appearance of Kilauea’s output varies. Many of Kilauea’s eruptions occurred along its East Rift Zone, a fracture system extending ~eastward from the summit vent area. Seen here is lava erupting at the summit of Kilauea Volcano from 10:30 to 10:31 AM, local time, on 6 December 2025. This is the high fountaining phase of "episode 38", which started in the mid-morning of 6 December. "Episode 1" of the current eruption series started on 23 December 2024.
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Info. from the Hawaiian Volcano Observatory (HVO) & United States Geological Survey (USGS):
Episode 38 fountains began at about 8:45 AM Hawaii Standard Time from the north vent after several north vent overflows overnight. Low fountains and overflows were confined to the two sub vents within the north vent cone for several hours prior to the onset of Episode 38. Fountains and flows from the south vent began at 8:49 AM Hawaii Standard Time. All three vents are currently producing fountains. South vent fountains are close to 1200 feet (370 meters) high while the north vent fountains have dropped well below their maximum height of 500 feet (150 meters). Hot lava and pumice from the south vent fountained destroyed the V3 streaming camera site within the closed area just before 10:00 AM Hawaii Standard Time.
Prior to the south vent becoming dominant, there were three roughly equal sized 500 foot (150 meter) high fountains with two from the north vents and one from the south vent. This triple fountain is an extremely rare event, and this is the first time during this eruption it has been observed.
The associated plume, composed of water vapor and SO2 gas (possibly with Pele's hair and fine ash) currently has a maximum height of ~15000 feet (4500 meters) above ground level.
The summit has deflated approximately 9.5 microradians as measured on the Uekahuna tiltmeter in about 1 hour and 45 minutes. The rapid tilt drop and very high output from both vents suggest this may be another relatively short episode lasting less than 6-8 hours similar to episode 37.
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Locality: Halemaumau Crater, southwestern corner of Kilauea Crater (Kilauea Caldera), southeastern Hawaii, central Pacific Basin
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Info. at:
Basalt columns lava formations near Calcite Springs and Yellowstone River viewed from Tower Fall Trail, Yellowstone National Park, 06 September 2017.
I found this piece of basalt with some sort of inclusion in it. Almost looks like quartz. I wonder how it got there?
Taken with a Sony Mavica CD400, Spring of 2002
(plan view)
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Igneous rocks form by the cooling and crystallization of hot, molten rock (magma / lava). If this happens at or near the land surface, or on the seafloor, they are extrusive igneous rocks. If this happens deep underground, they are intrusive igneous rocks. Most igneous rocks have a crystalline texture, but some are clastic, vesicular, frothy, or glassy.
Basalt is a common extrusive igneous rock. Basalt is the dominant rock in Earth’s upper oceanic crust. Black lava rocks seen at famous volcanoes such as Mt. Kilauea in Hawaii and Mt. Etna in Sicily are composed of basalt. Basalt has a mafic chemistry. Mafic igneous rocks are generally dark-colored, have 45-52% silica (= SiO2 chemistry) (mafic has also been defined as 45 to 55% silica), are rich in iron (Fe), magnesium (Mg), and calcium (Ca), and are dominated by the minerals plagioclase feldspar, pyroxene, and sometimes olivine (this example has a greenish olivine component).
Basalts have an aphanitic texture (finely crystalline - all or almost all crystals are less than 1 millimeter in size each), but some are porphyritic or coarsely crystalline if the lava flow took time to cool and solidify (e.g., some Proterozoic basalt lavas in the Keweenaw Peninsula of Michigan's Upper Peninsula).
The sample seen here is a vesicular basalt (best seen in cross-section), an intermediate lithology between basalt and scoria. Scorias are basaltic rocks with numerous small gas bubbles. Vesicular basalts are basaltic rocks having relatively few, relatively large gas bubbles. Vesicular basalt is more dense than scoria (some scorias will float on water; vesicular basalts won’t do that).
This specimen is from the top surface of a lava flow - the linear features were caused by stretching of cooling lava in the direction of flow.
Locality: unrecorded
Waves crashing against columnar basalt at the edge of Reynisfjara. When lava cools slowly, cracks form in polygonal shapes, forming columns like the ones in the picture.
Diagram showing different formation hypotheses for striated blocks observed near Aristarchus crater on the Moon.
For example images of the striated blocks see: lroc.sese.asu.edu/news/index.php?/archives/336-Striated-b...
The hypotheses were presented in Zanetti et al., LPSC 42 (2011) Abstract 2262.
www.lpi.usra.edu/meetings/lpsc2011/pdf/2262.pdf
Scenario A is the possibility that the layers were formed when bright-material flood basalt deposits alternated with dark pyroclastic ejecta coughed out of volcanoes
Scenario B: is the hypothesis that bright-material flood basalt deposits sat on the surface and were then peppered with impacts on the top side to make a dusty darker regolith
Scenario C: is the hypothesis that bright-material flood basalts formed a dark glassy crust layer on the top surface as the basalt layer was quickly cooled when exposed to the lunar vacuum
The authors found that Scenario C is the best explanation.
Graphic by Mike Malaska