| 1. | Chondrite normalized ree distribution patterns for the core q43 are comparable to those of the sediment of changjiang river and huanghe river delta 球粒陨石标准化后的稀土元素具有与长江、黄河、黄土等上陆壳沉积物相一致的特征。 |
| 2. | The average composition for our sample is different in some ways from the ci chondrite meteorites : namely we found more zinc , gallium , and copper , and less sulfur 我们样品的平均成分水平在某些方面与ci球粒陨石不同:即我们发现有较多的锌、镓和铜及较少的硫。 |
| 3. | Miao b . , wang g . , wang d . , ouyang z . , lu r . , dai d . , and lin y . ( 2005 ) petrology and mineral chemistry of two ureilites found in grove mountains . acta geologica sinica 77 戴德求,林杨挺,缪秉魁,王桂琴, ( 2006 )南极碳质球粒陨石中两个富尖晶石球粒状难熔包体的岩石学和矿物化学特征研究地球化学出版中。 |
| 4. | Because the chondritic asteroids formed after the chondrules did , the initial 26al to 27al ratio in chondrules places an upper limit on the amount of 26al that was available to heat the rocky bodies 因为球粒陨石小行星是在球粒之后形成,球粒中铝26对铝27的初始比值,决定了能够用来加热石质天体的铝26含量的上限。 |
| 5. | According to this scenario , researchers could never find evidence of such early chondrules because all these objects would have been destroyed by the melting of the chondritic asteroids into which they accreted 在这个情形下,研究人员恐怕永远也无法找到如此早期的球粒证据,因为所有这些物体在聚合的过程中,都会因为球粒陨石小行星熔化而被破坏。 |
| 6. | Even after making generous assumptions , we determined that the maximum temperature reached in carbonaceous - chondrite asteroids with a diameter of 80 kilometers or more would be only 670 degrees c , too low to cause any melting at all 即使给予很宽松的假设,我们认为直径在80公里或以上的碳质球粒陨石小行星,达到的最高温度只有670 ,不足以造成任何的熔化。 |
| 7. | These investigations have found strong evidence for the former presence of 26al in the so - called refractory inclusions : tiny mineral assemblages , rich in calcium and aluminum , embedded in chondritic meteorites alongside the chondrules 这些研究发现了强而有力的证据,显示铝26曾经存在于所谓的耐火包体(富含钙和铝的细小矿物组合体,与球粒一起镶埋在球粒陨石内) 。 |
| 8. | Thermal models show that even if the asteroids assembled immediately after the formation of the chondrules , 26al heating would have raised temperatures in the interiors of ordinary - chondrite bodies to a maximum of 1 , 100 degrees c ? high enough to cause melting of metals and sulfides but too low to melt silicate minerals extensively and differentiate an asteroid 热模型显示,即使小行星在球粒形成之后立刻聚合,铝26的加热最多也只能将普通球粒陨石内的温度提高到1100 ,虽可使金属和硫化物熔化,但并不足以将矽酸盐矿物大量熔化并造成小行星各层分异。 |
| 9. | The southern hainan mafic dykes are strongly enriched in lile with high nb / ta ratios , indicating a magma source reconstructed by silicic - melt through partial melting of ancient subducted slides . however , the northern hainan mafic dykes with chondritic nb / ta ratio should be derived from the fiuid - metasomatized mantle related to ancient subduction zone 琼南基性岩脉强烈富k _ 2o等lile和具有较高nb ta比值,其地幔源区应受到了古俯冲板片部分熔融形成的硅质熔体的改造;而琼中基性岩脉的nb ta比值接近于球粒陨石和morb值,应为古俯冲带含水流体交代的地幔源区的产物。 |
| 10. | Theoretically , if organisms with such capabilities were embedded within material catapulted from mars the way that the nakhlites and alh84001 apparently were ( that is , without excessive heating ) , some fraction of the organisms would still be viable after many years , perhaps several decades , in interplanetary space 理论上,具有此类能力的有机体,若是藏身于某种物质的内部,自火星弹射而出时,又如同透辉橄无球粒陨石与alh84001般未过度受热的话,有相当比例的有机体,在行星际空间中经过多年,甚至数十年后仍可存活。 |