India’s Lonar Crater began causing confusion soon after it was identified in 1823 by a British officer named C.J.E. Alexander. Lonar Crater sits inside the Deccan Plateau—a massive plain of volcanic basalt rock leftover from eruptions some 65 million years ago. Its location in this basalt field suggested to some geologists that it was a volcanic crater. Today, however, Lonar Crater is understood to result from a meteorite impact that occurred between 35,000 and 50,000 years ago.
Lonar Crater is approximately 150 meters (500 feet) deep, with an average diameter of almost 1,830 meters (6,000 feet). The crater rim rises roughly 20 meters (65 feet) above the surrounding land surface. Scientists established Lonar’s status as an impact crater based on several lines of evidence, perhaps the most compelling being the presence of maskelynite. Maskelynite is a kind of naturally occurring glass that is only formed by extremely high-velocity impacts. A Science article published in 1973 pointed out this material’s presence, and suggested that the crater’s situation in volcanic basalt made it a good analogue for impact craters on the surface of the Moon.
हाराष्ट्र के लोनार के समीप लोनार झील समुद्र तल से 1,200 मीटर ऊंची सतह पर लगभग 100 मीटर के वृत्त में फैली हुई है। वैसे इस झील का व्यास दस लाख वर्ग मीटर है। इस झील का मुहाना गोलाई लिए एकदम गहरा है, जो बहाव में 100 मीटर की गहराई तक है। मौसम से प्रभावित 50 मीटर की गहराई गर्द से भरी है। और5 से 8 मीटर तक खारे पानी से। इस झील का उद्गम संभवतः लावा के ऊबड़-खाबड़ बहने और उसके रुकने से हुआ है। यह भी संभव है कि बुझे हुए (मृत) ज्वालामुखी के गर्त से इस झील की उत्पत्ति हुई हो।
Lonar Lake is a saline soda lake located at Lonar in Buldhana district, Maharashtra, India, which was created by a meteor impact during the Pleistocene Epoch and it is the only known hyper velocity impact crater in basaltic rock anywhere on earth.
This lake, which lies in a basalt impact structure, is both saline and alkaline in nature. Geologists, ecologists, archaeologists, naturalists and astronomers have published studies of various aspects of this crater lake ecosystem. Lonar Lake has a mean diameter of 1.2 kilometres (3,900 ft) and is about 137 metres (449 ft) below the crater rim. The meteor crater rim is about 1.8 kilometres (5,900 ft) in diameter.
The circular depression bears a saline water lake in its central portion. The crater’s age is usually estimated to be 52,000 ± 6,000 years (Pleistocene), although a study published in 2010 gives an age of 570,000 ± 47,000 years.
Lonar is a meteorite crater created in an impact about 50,000 years before present. It contains and is known for the salt water crater lake 1.8 km in diameter. The nearby town of Lonar gets its name from this lake. This is a municipal council in Buldhana district of the division of Buldhana of the region of Vidarbha in the Indian state of Maharashtra. The lake is almost perfectly circular. The depth is almost 200 feet. It is a taluka of the district of Buldhana and is located near Mehkar. It is known for Lonar crater and Lonar Lake, which is located at WikiMiniAtlas19°58′N 76°30′E. There is a 12-inch fresh water stream that provides water into the lake. Due to evaporite effects, the lake is mineral rich and salty. | image_skyline = Lonar crater.jpg
Lonar crater is Asia’s NINTH Largest Crater and India’s magnificent hyper-velocity meteorite-impact crater.
Diameter: about 2 KMs
Depth: about 800Feet
Situated on the outskirts of Loanar town in Buldhana District, the Lonar Crater was first discovered in 1823 by British officer, J.E. Alexander. It is also written about in ancient scripts like the Skanda Puran, the Padma Puran and the Aaina-i-Akbari.
Lonar is distinguished by the fact that it is the world’s third largest crater. It has its genesis nearly 50,000 years ago, when a 2 million-ton meteorite impacted the earth to create a depression 1.83 kilometers in diameter and 150 meters deep.
Since that cataclysmic event, Lonar has evolved into an idyllic expanse of sky blue water amidst a sprawling emerald forest that stretches around it as far as the eye can see. Today, it attracts casual tourists as well as members of the scientific community from across the world, including research agencies like the Smithsonian Institution of Washington DC, the US Geological Survey, the Geological Society of India, and Sagar University, Jabalpur, and Physical Research Laboratory, Ahmedabad, which have conducted extensive studies about the site.
But, the scientific angle aside, this destination also has much to offer wildlife enthusiasts as it is generously endowed in both flora and fauna. The crater is home to hundreds of peafowl, chinkara and gazelles, which browse amongst the shrubs and bushes ringing the lake. Other residents include egrets, moor hens, herons, coots, white-necked storks, lapwings, grey wagtails, grebes, black droungos, green bee-eaters, tailorbirds, magpies and robins – as well as numerous species of migratory birds that often visit the place.
Lonar impresses with the richness of its natural heritage. And, like the meteorite that put it on the map, leaves a lasting impression
And its age is estimated to be 52,000 ± 6,000 years. It is the largest impact crater in Lonar crater is situated around 550 km from Mumbai, 160 km from Aurangabad and 140 km from Buldhana. It is about 4½ hours drive southeast of the famous Ajanta Caves. The nearest railway station is Malkapur on Bhusaval-Nagpur Section of SC Railway.basaltic rock and is partially filled by a salt water lake.
Lonar crater is an important geological structure. This crater formed in basalt rock of the Deccan plateau some 35 to 50 thousand years is only of its kind. Though now it is declared as an impact crater, from 1823 when J. E. Alexander pointed out the crater, for almost a century and half the exact type of its origin was a debatable issue. Initially it was thought to be a volcanic crater. In fact, the famous geologist G.K. Gilbert in 1896 showed its similarity with the Meteor crater (Barringer crater), Arizona.
One Request: Do not throw plastic or such hazardous waste into the lake, try to pick up thrown waste and deposit it outside the crater, this is just a request, the government will not do anything for the crater, the politicians are busy cheating and 100s of Crores! Pl. help save a natural wonder! Thanks for reading.
Wikipedia article: http://en.wikipedia.org/wiki/Lonar_crater_Buldhana_Maharashtra_India
Nearby cities: Mehkar, Risod, Jintur
Coordinates: 19°58’38″N 76°30’29″E
Lonar Crater, India, is one of the youngest
and best preserved impact structures on
Earth. The 1.88-km-diameter simple crater
formed entirely within the Deccan traps,
making it a useful analogue for small craters
on the basaltic surfaces of the other terrestrial
planets and the Moon. In this study, we
present a meter-scale–resolution digital elevation
model, geological map of Lonar Crater
and the surrounding area, and radiocarbon
ages for histosols beneath the distal ejecta.
Impact-related deformation of the target
rock consists of upturned basalt fl ows in the
upper crater walls and recumbent folding
around rim concentric, subhorizontal, noncylindrical
fold axes at the crater rim. The
rim-fold hinge is preserved around 10%–
15% of the crater. Although tearing in the
rim-fold is inferred from fi eld and paleomagnetic
observations, no tear faults are identi-
fi ed, indicating that large displacements
in the crater walls are not characteristic of
small craters in basalt. One signifi cant normal
fault structure is observed in the crater
wall that offsets slightly older layer-parallel
slip faults. There is little fl uvial erosion of
the continuous ejecta blanket. Portions of the
ejecta blanket are overlain by aerodynamically
and rotationally sculpted glassy impact
spherules, in particular in the eastern and
western rim, as well as in the depression
north of the crater known as Little Lonar.
The emplacement of the continuous ejecta
blanket can be likened to a radial groundhugging
debris fl ow, based on the preserved
thickness distribution of the ejecta, the effi –
cient exchange of clasts between the ejecta
fl ow and the underlying histosol, and the
lack of sorting and stratifi cation in the bulk