New Studies of the Sikhote—alin Iron Meteorite Shower

Krinov, E. L.

doi:10.1111/j.1945-5100.1971.tb00104.x

Cited by 23 publications

(34 citation statements)

References 3 publications

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“…Such craters are often called "explosion" craters due to their sudden transfer of energy and momentum into the target. The largest crater formed in the multiple iron fall of Sikhote-Alin (Krinov 1971) was 26.5 m in diameter and 6 m deep, with the typical value of the depth to diameter ratio of ~0.2 for impact craters and containing relict iron masses. Nevertheless, there is no information E log 4.8 1.5M + = Fig.…”

Section: Other Recent Terrestrial Cratersmentioning

confidence: 99%

“…The iron fall of Sterlitamak was tentatively classified as a transitional morphological type between a meteorite crater and an impact pit (Petaev 1992). Only two cases might indicate shockgenerated craters: individual craters within the Sikhote-Alin (Krinov 1971) or Campo del Cielo (Cassidy et al 1965;Wright et al 2006Wright et al , 2007 strewn fields, both produced by strong iron meteorites. Such craters are often called "explosion" craters due to their sudden transfer of energy and momentum into the target.…”

Section: Other Recent Terrestrial Cratersmentioning

confidence: 99%

“…Larger objects are able to produce crater fields such as Campo del Cielo (Cassidy et al 1965) or Sikhote-Alin (Krinov 1971), whereas smaller objects produce meteorite strewn fields after decelerating to low terminal velocity such as those described by Jilin (Academia Sinica 1977). The material strength of the meteoroid plays an important role in the fate of the object during atmospheric flight.…”

Section: Comparison With Other Cases and Modelsmentioning

confidence: 99%

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A meteorite crater on Earth formed on September 15, 2007: The Carancas hypervelocity impact

Tancredi

Ishitsuka

Schultz

et al. 2009

Meteorit & Planetary Scien

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(Received 1 December 2008; revision accepted 12 April 2009)Abstract-On September 15, 2007, a bright fireball was observed and a big explosion was heard by many inhabitants near the southern shore of Lake Titicaca. In the community of Carancas (Peru), a 13.5 m crater and several fragments of a stony meteorite were found close to the site of the impact. The Carancas event is the first impact crater whose formation was directly observed by several witnesses as well as the first unambiguous seismic recording of a crater-forming meteorite impact on Earth. We present several lines of evidence that suggest that the Carancas crater was a hypervelocity impact. An event like this should have not occurred according to the accepted picture of stony meteoroids ablating in the Earth's atmosphere, therefore it challenges our present models of entry dynamics. We discuss alternatives to explain this particular event. This emphasizes the weakness in the pervasive use of "average" parameters (such as tensile strength, fragmentation behavior and ablation behavior) in current modeling efforts. This underscores the need to examine a full range of possible values for these parameters when drawing general conclusions from models about impact processes.

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Section: Other Recent Terrestrial Cratersmentioning

confidence: 99%

Section: Other Recent Terrestrial Cratersmentioning

confidence: 99%

Section: Comparison With Other Cases and Modelsmentioning

confidence: 99%

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A meteorite crater on Earth formed on September 15, 2007: The Carancas hypervelocity impact

Tancredi

Ishitsuka

Schultz

et al. 2009

Meteorit & Planetary Scien

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“…The Sikhote-Alin iron meteorite shower is a well-studied and documented [Krinov, 1959] ]. Terminal fragment masses were defined in the range of 0.1-3 kg, but no pieces were found on the ground.…”

Section: Sikhote-a!in Meteorite Showermentioning

confidence: 99%

Motion of a fragmented meteoroid through the planetary atmosphere

Artemieva¹,

2001

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Abstract. Meteor observations and crater field investigations support the view that some meteoroids undergo fragmentation into a finite number of splinters which move a long distance without further disruption. The motion of these fragments cannot be described in the frame of liquid-like models. The primary purpose of this study is to achieve some success in improving the alternative model of separate fragments, which is based on studying the motion of a finite number of fragments interacting with each other through the air pressure. The three-dimensional (3-D) numerical technique is elaborated for the direct modeling of the flow around several arbitrarily arranged fragments. The model allows us to calculate the ablation mass rate and aerodynamic loading for each fragment. The new approach (hybrid model) based on the simultaneous solution of the 3-D hydrodynamic equations for the airflow and the differential equations for the motion of discrete particles is proposed to study the debris cloud evolution, taking into account successive fragmentation. The simplified version of this model was applied to the Sikhote-Alin meteorite shower, Bene•ov bolide, and small meteoroids' impacts against the Martian surface.

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“…The first historical reported crater occurred in eastern Siberia on February 12, 1947, and is associated to the fall of Sikhote-Alin iron meteorite (Krinov 1971). The initial mass of the meteoroid was estimated to be 100 tons.…”

Section: Introductionmentioning

confidence: 99%

Evidence for a meteoritic origin of the September 15, 2007, Carancas crater

Pichon¹,

Antier

Cansi

et al. 2008

Meteorit & Planetary Scien

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Abstract-On September 15th, 2007, around 11:45 local time in Peru, near the Bolivian border, the atmospheric entry of a meteoroid produced bright lights in the sky and intense detonations. Soon after, a crater was discovered south of Lake Titicaca. These events have been detected by the Bolivian seismic network and two infrasound arrays operating for the Comprehensive Nuclear-Test-Ban Treaty Organization, situated at about 80 and 1620 km from the crater. The localization and origin time computed with the seismic records are consistent with the reported impact. The entry elevation and azimuthal angles of the trajectory are estimated from the observed signal time sequences and backazimuths. From the crater diameter and the airwave amplitudes, the kinetic energy, mass and explosive energy are calculated. Using the estimated velocity of the meteoroid and similarity criteria between orbital elements, an association with possible parent asteroids is attempted. The favorable setting of this event provides a unique opportunity to evaluate physical and kinematic parameters of the object that generated the first actual terrestrial meteorite impact seismically recorded.

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New Studies of the Sikhote—alin Iron Meteorite Shower

Cited by 23 publications

References 3 publications

A meteorite crater on Earth formed on September 15, 2007: The Carancas hypervelocity impact

A meteorite crater on Earth formed on September 15, 2007: The Carancas hypervelocity impact

Motion of a fragmented meteoroid through the planetary atmosphere

Evidence for a meteoritic origin of the September 15, 2007, Carancas crater

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