anson_1231 发表于 2014-11-4 21:45
我发给你的网站里有Milan的电子邮箱，你可以问问他是否会出手他现在有的捷克陨石。。
当然，我没有联 ...
邮件多少呀?
ABOVE: A variety of tektites from the Indochinese Peninsula, the Philippines, the Czech Republic, Texas, USA and Georgia, USA. To find out their importance, to differentiate them and to understand them - read on!
Tektites are found in geographically restricted areas and are associated with asteroid or comet impact with the Earth. A number of previous hypotheses were put forward, including a lunar origin (from lunar volcanoes or lunar impact events). These alternatives are no longer taken seriously by scientists. It has been firmly established that tektites are terrestrial rock melted and flung into the atmosphere by the force of an asteroid or comet impact. Whilst a number of tektite strewn fields exist, the focus of this website is on the Australasian strewn field. This is the most recent strewn field, the largest and is unique due to the very low angle impact, which resulted in the formation of highly oriented forms typified by the much sought after flanged Australite buttons.
ABOVE:An Australian tektite - this was flung around 6000 km from the impact site and was melted and re-shaped during atmospheric re-entry!
Approximately 803,000 (+/-3,000) years ago (Yamei et al., 2000; also Lee & Wei, 2000 if the Brunhes/Matuyama (B/M) reversal boundary is adjusted to Sarna-Wojcicki et al. 2000) we were treated to a low angle asteroid impact somewhere in the Indochinese Peninsula. This created the Australasian tektite strewn field. For any primitive man (Homo erectus) in south-east Asia it wouldn’t have been so much a treat as a total annihilation. In the seconds that followed, terrestrial rock was vaporised and flung away from the site of impact. Seconds to minutes later tektites were raining down, concentrated in radial rays, across the whole of south-east Asia and Australia. It must have been a truly awesome and terrifying sight.
The formation of an impact crater is demonstrated at the NASA Deep Impact site. The videos are excellent and well worth watching. My favourite is the Pumice Impact test side view (at the bottom of the page). When the asteroid or comet landed on Earth, it's enormous kinetic energy melted the country rock, but some momentum was conserved and transferred to this melted country rock. Thus, a far-flung tektite was born!
Tektites are found in many shapes and sizes. The different morphologies are geographically restricted and occur in a radial pattern away from the source crater. This website identifies the different morphologies and surface sculptures. It is then attempted to deduce what the morphologies and surface sculptures tell us about the formation of tektites. Tektites are made of glass, and it is the properties of glass which are so important in understanding the final forms we see today. Some controversy and misunderstanding still surrounds tektites, but finally we are getting to the truth and dispelling the myths. There is always more to be learnt though, so long live the debate: it is the enigmatic nature of tektites that makes them so appealing!
ABOVE: Moments after impact thousands of tektites would re-enter the atmosphere creating an amazing and terrifying show.
Return to top of page Australasian Tektites page
anson_1231 发表于 2014-11-4 21:45
我发给你的网站里有Milan的电子邮箱，你可以问问他是否会出手他现在有的捷克陨石。。
当然，我没有联 ...
初级形状的形成
首先研究了初级形状的形成。这些初级形状后迅速的影响而形成的玻璃还是熔融和被逐出低层大气。
重新修改
随着玻陨石重新进入地球大气层的密度层摩擦加热发生修改的主要形状。在Indochinites,可能熔融玻陨石是畸形的。Indochinites显然有后和前表面,这可能是由入境(否则形成于碰撞点)。Philippinites遭受热裂缝前,有时表面蜿蜒。在较大的标本剥落发生热应力壳。澳大利亚玻陨石了烧蚀形成法兰和热裂纹导致剥落和核心生产。
学习时重新修改,需要记住的最重要的事情是玻陨石玻璃。玻璃表现非常不同的岩石和/或金属陨石。从固体在re-enty玻璃不同,稍微熔化的固体内部到100%。玻璃有特定的属性,如脆性有特定的热膨胀系数(与精确的化学)。这些玻璃属性确定发生了什么在重新加热玻璃玻陨石。
影响修改
当Indochinites撞到地上一些遭受破损和形状修改,因为他们仍然熔化或熔融薄脆弱的内部固化外表面。Philippinites可能显示一些影响相关功能。澳大利亚玻陨石显示所有(除了可能破损预定义的弱点)。
化学腐蚀
我相信大多数雕塑在玻陨石主要是它不是随机的。这种假设是不正确的:大多数雕塑是次要的,但是是预定义的弱点时创建玻陨石的形成。这就解释了为什么玻陨石雕塑不同地理位置。玻陨石来自不同领域的散落字段显示不同的雕刻和雕塑之间的前和后表面往往是明显不同的。一些雕塑,如v型槽和安达雕塑,在孤立的口袋在澳大利亚玻陨石,Philippinites,Indochinites贝迪亚玻陨石,尤其是绿玻陨石肯定是由于化学腐蚀。安达雕塑优先发展原始(后)表面。安达雕塑遵循的弱点产生残余应力和应变的形式的玻陨石从由外向内迅速冷却。
U-grooves(或约束)和肚脐Phillipinites发现,勿里洞玻陨石(马来西亚)和一些澳大利亚玻陨石内核。他们primarilly发生前表面。这种安排不是随机的,是热裂纹产生在再入阶段。
上图:Philippinites安达雕塑上面两行。绿玻陨石在底部排。
以上最高:前;高于底部:后Philippinite内核。来自不同的地方,每一行显示不同的保存状态。的顶部是蚀刻。底部的玻陨石是最蚀刻。
上图:各种玻陨石从印度支那半岛,菲律宾,捷克共和国,德克萨斯州,美国和格鲁吉亚,美国。找出它们的重要性,区分他们,理解他们,继续读下去!
玻陨石中发现地理限制区域,并与地球与小行星或彗星的影响。许多先前的假设提出,包括月球起源(从月球火山或月球影响事件)。这些选择不再被科学家们所重视。牢固确立,玻陨石是陆地岩石融化,扔到大气中由小行星或彗星撞击的力量。虽然许多玻陨石散落领域存在,这个网站的重点是在澳大拉西亚的散落。这是最近的散落,最大的,是独一无二的由于非常低角度的影响,导致高度定向形式所作的形成很受欢迎法兰澳大利亚玻陨石按钮。
上图:一个澳大利亚玻陨石——这是扔在6000公里从影响站点和融化,日前在大气重返!
大约803000(+ / -3000)年前(亚美et al .,2000;也Lee &魏2000如果Brunhes / Matuyama(B / M)逆转边界调整Sarna-Wojcicki et al . 2000年)为我们提供了一个低角度小行星撞击在印度支那半岛。这创造了澳大拉西亚的玻陨石散落。对于任何原始人在东南亚(直立人)它不会一直这么多治疗作为一个横扫千军。在接下来的几秒钟,陆地岩石蒸发,猛地从网站的影响。秒到几分钟后玻陨石被雨下来,集中在径向射线,在整个东南亚和澳大利亚。它一定是一个真正可怕的,可怕的景象。
一个陨石坑的形成是在美国宇航局网站产生深刻影响。这些视频都是优秀的,值得一看。我最喜欢的是浮石冲击试验方视图(在页面的底部)。当小行星或彗星降落在地球上,它的巨大动能融化的岩石,但一些动量是守恒和转移到这融化的岩石。因此,一个遥远的玻陨石出生!
玻陨石中发现许多不同的形状和尺寸。不同形态在地域上受到的限制和发生在径向模式远离源火山口。这个网站标识不同的形态和表面雕塑。然后试图推导出形态和表面雕塑告诉我们关于玻陨石的形成。玻陨石是由玻璃制成的,它是如此重要的属性的玻璃理解我们今天所看到的最终形式。玻陨石仍然存在一些争议和误解,但最后我们得到真相,消除神话。总是有更多的东西要学习,所以万岁的争论:它是玻陨石的神秘的性质使他们如此有魅力!
上图:时刻影响成千上万的玻陨石将进入大气层后创建一个神奇的和可怕的。
返回页顶澳大拉西亚的玻陨石页面
返回页顶的主要形状形成页面
anson_1231 发表于 2014-11-4 21:45
我发给你的网站里有Milan的电子邮箱，你可以问问他是否会出手他现在有的捷克陨石。。
当然，我没有联 ...
这么多英文，他的网站都不知道在哪儿呀:L
夜明珠 发表于 2014-11-5 12:37
初级形状的形成
首先研究了初级形状的形成。这些初级形状后迅速的影响而形成的玻璃还是熔融和被逐出低层 ...
:funk::funk::funk:
你翻译的也太厉害了吧:L
夜明珠 发表于 2014-11-5 12:41
这么多英文，他的网站都不知道在哪儿呀
他的联系方式： aubrey@tektites.co.uk
祝你好运哦
I want to ask, he is a what kind of currency? I am the only RMB
他说他不卖玻璃陨石
透不過氣:$
这里面的有的家伙气场欠佳啊
kasla 发表于 2014-11-26 21:03
这里面的有的家伙气场欠佳啊
没明白你的意思，你是说 捷克陨石 欠 气场？:o