Parent crater for Australasian tektites beneath the sands of the Alashan Desert, Northwest China: Best candidate ever?

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F22%3A00566829" target="_blank" >RIV/67985815:_____/22:00566829 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/67985891:_____/22:00564171 RIV/61389005:_____/22:00563501 RIV/00216224:14310/22:00124987

Výsledek na webu

<a href="http://dx.doi.org/10.1130/2021.2553(25)" target="_blank" >http://dx.doi.org/10.1130/2021.2553(25)</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1130/2021.2553(25)" target="_blank" >10.1130/2021.2553(25)</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Parent crater for Australasian tektites beneath the sands of the Alashan Desert, Northwest China: Best candidate ever?

Popis výsledku v původním jazyce

Australasian tektites represent the largest group of tektites on Earth, and their strewn field covers up to one sixth of Earth's surface. After several decades of fruitless quest for a parent crater for Australasian tektites, mostly in the main part of the strewn field in Indochina, the crater remains undiscovered. We elaborate upon a recently suggested original hypothesis for the impact in the Alashan Desert in Northwest China. Evidence from geochemical and isotopic compositions of potential source materials, gravity data, and geographic, paleoenvironmental, and ballistic considerations support a possible impact site in the Badain Jaran part of the Alashan Desert. In further support of an impact location in China, glassy microspherules recovered from Chinese loess may be the right age to relate to the Australasian tektite event, perhaps as part of the impacting body. The most serious shortcomings of the commonly accepted Indochina impact location include signs of little chemical weathering of source materials of Australasian tektites, unlike highly weathered sedimentary targets in Indochina, and questionable assumptions about transport of distal ejecta.

Název v anglickém jazyce

Parent crater for Australasian tektites beneath the sands of the Alashan Desert, Northwest China: Best candidate ever?

Popis výsledku anglicky

Australasian tektites represent the largest group of tektites on Earth, and their strewn field covers up to one sixth of Earth's surface. After several decades of fruitless quest for a parent crater for Australasian tektites, mostly in the main part of the strewn field in Indochina, the crater remains undiscovered. We elaborate upon a recently suggested original hypothesis for the impact in the Alashan Desert in Northwest China. Evidence from geochemical and isotopic compositions of potential source materials, gravity data, and geographic, paleoenvironmental, and ballistic considerations support a possible impact site in the Badain Jaran part of the Alashan Desert. In further support of an impact location in China, glassy microspherules recovered from Chinese loess may be the right age to relate to the Australasian tektite event, perhaps as part of the impacting body. The most serious shortcomings of the commonly accepted Indochina impact location include signs of little chemical weathering of source materials of Australasian tektites, unlike highly weathered sedimentary targets in Indochina, and questionable assumptions about transport of distal ejecta.

Druh

C - Kapitola v odborné knize

CEP obor

—

OECD FORD obor

10508 - Physical geography

Projekt

<a href="/cs/project/EF16_019%2F0000728" target="_blank" >EF16_019/0000728: Výzkum ultrastopových izotopů a jejich využití v sociálních a environmentálních vědách urychlovačovou hmotnostní spektrometrií</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název knihy nebo sborníku

In the Footsteps of Warren B. Hamilton: New Ideas in Earth Science

ISBN

978-08-1372-553-6

Počet stran výsledku

12

Strana od-do

323-334

Počet stran knihy

434

Název nakladatele

Geological Society of America

Místo vydání

Boulder

Kód UT WoS kapitoly

000891146500026