在H5合体中含有含酸盐的液体内有小行星水,Monahans (1998)
M E Zolensky1, R J Bodnar, E K Gibson
1Mail Code SN2, NASA Johnson Space Center, Houston, TX 77058, USA.
概括
莫纳汉的地铁化和锡尔维特晶体中含有水性液体的含量显示出化-化盐水. 这些盐含有双价离子,这表明它们的起源来自内部的小行星流体或外部的冰体.
科学领域:
- *宇宙化学和行星科学,专注于石和小行星组成.
- * 地球外物质的地化学和流体进化.
背景情况:
- *石,特别是石,为早期太阳系过程提供了洞察力.
- * 酸盐和西尔维特是盐矿物质,可以保存过去水环境的证据.
研究的目的:
- * 分析来自Monahans (1998) H5石的石和石中含有水性流体的组成.
- * 为了确定这些盐水晶中被困的盐水的起源和性质.
主要方法:
- * 分析化石和锡尔维特晶体内的液体含有.
- *盐成分的化学表征,包括主要和双价离子.
主要成果:
- * 液体内含物主要含有化和化盐水.
- * 在盐水中检测到铁,和等二元.
- *这些盐水的存在表明母体内的过去的水性活动.
结论:
- * 分析的盐水可能源自小行星内的本土流体或来自盐丰富的冰冷物体的外源输送.
- *这些发现有助于理解小行星中水和挥发性元素的历史.
关键词:
非编程性的非编程性.相关概念视频
States of Water
Water exists in any one of the three classical states: solid (ice), liquid (water), and gas (steam or water vapor). The state of water depends on i) the intermolecular forces that draw molecules together and ii) the kinetic energy that leads to movements that pull them apart.
Water freezes when the intermolecular forces are greater than the kinetic energy. Unlike most other substances, water is less dense in its solid state than in its liquid state. This is because each water molecule can form...
Water freezes when the intermolecular forces are greater than the kinetic energy. Unlike most other substances, water is less dense in its solid state than in its liquid state. This is because each water molecule can form...
Solvents
A solvent is a substance, most often a liquid, that can dissolve other substances. Here, the substance being dissolved is called a solute. When a solvent and a solute combine, they form a solution - a homogenous mixture of both the solvent and the solute. Water is a universal biological solvent. Its polar structure allows it to dissolve many other polar compounds. The ability of water to dissolve is governed by a balance between water molecules binding to each other and binding to the solute.
A...
A...
Cohesion
Cohesion is the attraction between molecules of the same type, such as water molecules. Water molecules have an overall neutral charge but are polar molecule. An oxygen atom in one water molecule has a partial negative charge that can bind to a hydrogen atom with a partial positive charge in a second water molecule, forming a hydrogen bond. Each water molecule can form up to four hydrogen bonds with other water molecules. Hydrogen bonds are responsible for water's cohesive nature.
On a surface,...
On a surface,...
Intermolecular Forces
Atoms and molecules interact through bonds (or forces): intramolecular and intermolecular. The forces are electrostatic as they arise from interactions (attractive or repulsive) between charged species (permanent, partial, or temporary charges) and exist with varying strengths between ions, polar, nonpolar, and neutral molecules. The different types of intermolecular forces are ion–dipole, dipole–dipole, hydrogen bonds, and dispersion; among these, dipole–dipole, hydrogen bonds, and dispersion...
Colloids
Children at play often make suspensions such as mixtures of mud and water, flour and water, or a suspension of solid pigments in water known as tempera paint. These suspensions are heterogeneous mixtures composed of relatively large particles that are visible to the naked eye or can be seen with a magnifying glass. They are cloudy, and the suspended particles settle out after mixing. On the other hand, a solution is a homogeneous mixture in which no settling occurs and in which the dissolved...
Solubility
Solution, Solubility, and Solubility Equilibrium
A solution is a homogeneous mixture composed of a solvent, the major component, and a solute, the minor component. The physical state of a solution—solid, liquid, or gas—is typically the same as that of the solvent. Solute concentrations are often described with qualitative terms such as dilute (of relatively low concentration) and concentrated (of relatively high concentration).
In a solution, the solute particles (molecules, atoms, and/or ions)...
A solution is a homogeneous mixture composed of a solvent, the major component, and a solute, the minor component. The physical state of a solution—solid, liquid, or gas—is typically the same as that of the solvent. Solute concentrations are often described with qualitative terms such as dilute (of relatively low concentration) and concentrated (of relatively high concentration).
In a solution, the solute particles (molecules, atoms, and/or ions)...


