pitchblende

简明释义

英[ˈpɪtʃblend]美[ˈpɪtʃˌblend]

n. [矿物] 沥青铀矿

英英释义

单词用法

同义词

反义词

例句

1.The distribution patterns of rare earth elements of pitchblende and surrounding rocks in three types of uranium deposits have been studied.

该文研究了桂东北地区三种不同类型铀矿床中沥青铀矿及其围岩的稀土元素分布模式。

2.After four years' hard work and refinement of tons of pitchblende, Marie and her husband at last saw the dim blue light of the new element-radium.

四年的辛勤工作和提炼了大量的沥青铀矿，玛丽和她的丈夫终于看到了发出暗蓝色微光的新元素——镭。

3.The pitchblende is the chief industrial mineral.

沥青轴矿是主要工业矿物。

4.The principal uranium mineral in the deposits of primary subtype is uraninite, but in reworked subtype are pitchblende and relict uraninite.

原生型矿床中主要铀矿物是晶质铀矿，改造型矿床中的主要铀矿物是沥青铀矿和残余的晶质铀矿。

5.After four years' hard work and refinement of tons of pitchblende, Marie and her husband at last saw the dim blue light of the new element-radium.

四年的辛勤工作和提炼了大量的沥青铀矿，玛丽和她的丈夫终于看到了发出暗蓝色微光的新元素——镭。

6.The initial lead in pitchblende belongs to radioactive origin from crust.

沥青铀矿中的初始铅属地壳放射成因。

7.The radiometric age of pitchblende is 109-108 m.

沥青铀矿的同位素年龄为108—109百万年。

8.Then she found that pitchblende was more radioactive than uranium by itself.

于是她发现沥青油矿，它的放射性要比铀本身还要强。

9.Particularly part of pitchblende samples with colloidal structure features have the same physical and optical features as uraninite.

尤其有一部分具有胶状构造外表特征的沥青铀矿样品的各项参数均与晶质铀矿一样。

10.Uranium mineral is pitchblende which was formed in Lower Proterozoic.

铀矿物主要为沥青铀矿，形成于早元古代。

11.In the past, pitchblende was a primary source of uranium for nuclear energy.

在过去，铀矿石是核能的主要铀源。

12.The museum has a display featuring various minerals, including pitchblende.

博物馆有一个展览，展示了各种矿物，包括铀矿石。

13.Researchers are studying the properties of pitchblende to understand its radioactivity.

研究人员正在研究铀矿石的特性，以了解其放射性。

14.The miners discovered a rich vein of pitchblende in the mountainous region.

矿工们在山区发现了一条富含铀矿石的矿脉。

15.Geologists often use pitchblende as an indicator of uranium deposits.

地质学家常常将铀矿石作为铀矿床的指示物。

作文

The world of geology and mineralogy is filled with fascinating materials, one of which is known as pitchblende. This term refers to a black, pitch-like mineral that is primarily composed of uranium oxide. It is significant not only for its unique physical properties but also for its role in the discovery of radioactivity and the development of nuclear energy. The name pitchblende itself is derived from its appearance, which resembles a mixture of pitch and blende, the latter being a term used for certain types of ores. In this essay, I will explore the characteristics, historical significance, and applications of pitchblende in various fields.Firstly, the physical properties of pitchblende are quite remarkable. This mineral typically has a dark, almost black coloration and a glassy luster, making it visually striking. Its composition includes a high percentage of uranium, often exceeding 70%, along with small amounts of other elements such as radium, thorium, and lead. The presence of uranium makes pitchblende radioactive, which was a key factor in its historical significance. When it was first discovered in the late 18th century by German chemist Martin Heinrich Klaproth, it was initially thought to be just another ore. However, further research revealed its potential as a source of uranium, which would later become essential in both energy production and medical applications.The historical context surrounding pitchblende is equally intriguing. The discovery of radioactivity in the late 19th century by scientists like Henri Becquerel and Marie Curie was largely tied to their studies of pitchblende. Curie's work on this mineral led to the isolation of radium, a groundbreaking achievement that opened the door to new medical treatments, particularly in cancer therapy. The ability to harness the energy produced by uranium found in pitchblende also marked the beginning of the nuclear age, fundamentally changing the landscape of energy production and international relations.In contemporary times, pitchblende continues to play a crucial role in various industries. Its primary application remains in the extraction of uranium for nuclear power plants, which provide a significant portion of the world's energy supply. Additionally, the radioactive properties of pitchblende have made it valuable in scientific research, particularly in fields such as radiology and nuclear medicine. Scientists continue to study this mineral to better understand its properties and potential uses, including the development of new technologies for energy and medical applications.However, the mining and use of pitchblende come with important considerations regarding safety and environmental impact. The radioactive nature of this mineral poses health risks to miners and surrounding communities if not managed properly. Therefore, strict regulations and safety protocols are necessary to mitigate these risks. Efforts are underway in many countries to ensure that the extraction and use of pitchblende are conducted in a responsible manner that protects both human health and the environment.In conclusion, pitchblende is far more than just a mineral; it is a key player in the history of science and technology. Its unique properties have led to significant advancements in our understanding of radioactivity and its applications in energy and medicine. As we continue to explore the potential of pitchblende, it is essential to balance its benefits with the responsibility of ensuring safe practices in its extraction and use. The legacy of pitchblende serves as a reminder of the intricate relationship between natural resources and human innovation, highlighting the importance of sustainable practices in the pursuit of progress.

地质学和矿物学的世界充满了迷人的材料，其中之一被称为铀矿。这个术语指的是一种主要由氧化铀组成的黑色、类似于沥青的矿物。它不仅因其独特的物理特性而重要，还因其在放射性发现和核能发展中的作用而重要。铀矿这个名字本身源于其外观，类似于沥青和某些类型矿石的混合物。本文将探讨铀矿的特征、历史意义及其在各个领域的应用。首先，铀矿的物理特性相当显著。这种矿物通常具有深色，几乎是黑色的颜色和玻璃光泽，使其在视觉上引人注目。它的成分包括高比例的铀，通常超过70%，以及少量其他元素，如镭、钍和铅。铀的存在使得铀矿具有放射性，这也是其历史意义的关键因素。当它在18世纪末被德国化学家马丁·海因里希·克拉普罗首次发现时，最初被认为只是另一种矿石。然而，进一步的研究揭示了它作为铀来源的潜力，后者后来在能源生产和医疗应用中变得至关重要。围绕铀矿的历史背景同样引人入胜。19世纪末亨利·贝克勒尔和玛丽·居里等科学家发现放射性与他们对铀矿的研究密切相关。居里对这种矿物的研究导致了镭的分离，这一突破性成就为新的医疗治疗，特别是癌症治疗，打开了大门。利用从铀矿中提取的铀所产生的能量也标志着核时代的开始，根本改变了能源生产和国际关系的格局。在当代，铀矿继续在各个行业中发挥关键作用。其主要应用仍然是在核电站中提取铀，这为世界能源供应提供了重要部分。此外，铀矿的放射性特性使其在科学研究中具有价值，特别是在放射学和核医学等领域。科学家们继续研究这种矿物，以更好地理解其特性和潜在用途，包括开发新技术以用于能源和医疗应用。然而，铀矿的开采和使用伴随着关于安全和环境影响的重要考虑。由于这种矿物的放射性特性，如果管理不当，会对矿工和周边社区造成健康风险。因此，严格的法规和安全协议对于减轻这些风险是必要的。许多国家正在努力确保铀矿的开采和使用以负责任的方式进行，以保护人类健康和环境。总之，铀矿不仅仅是一种矿物；它是科学和技术历史中的关键角色。其独特的特性促成了我们对放射性及其在能源和医学应用中的理解的重大进展。随着我们继续探索铀矿的潜力，平衡其利益与确保其开采和使用的安全实践的责任至关重要。铀矿的遗产提醒我们自然资源与人类创新之间错综复杂的关系，强调在追求进步的过程中可持续实践的重要性。