沉积鲕石和尿路结石若干特征的对比研究

本文从仿生学的思路出发，将几种沉积鲕石、核形石、结核等从其结构、成分和形成条件等方面与四种常见尿路结石进行对比研究。认为这些产物虽然发生在自然界或人体内两种截然不同的环境中，但是在研究其形成机理时，彼此有许多可以互相借鉴之处。沉积鲕石、核形石的分层结构和再结晶交代现象等，可以对比应用于尿石的形成和发育机理的解释；同时，尿路结石形成理论中的局部过饱和以及取向附生学说，也可引进于沉积鲕石、核形石和结核的形成理论中。此外，本文首次介绍了热发光方法研究沉积鲕石和尿路结石的成果，并认为这一研究方法仍有继续深入探讨其应用范围的潜力。

A Comparative Study of Some Characteristics of Sedimentary Oolites and Urolith Stones

Based on the train of thought of bionics,the present paper,by utilizing sedimentary oolites, oncolites and concretes,has made a comperative study on structures,composition and formation conditions of four common urolith stones. It is considered that although tjese materials are produced in quite different environments in nature or in hurnan bodies,there are many aspects which are useful in explaining their formation mechanisms. The structure of oolite layers and the recrystallization and replacement of concretes can be used to make comparative explanatio of the formation mechanism and growth genesis of uro-lith stones. In addition,the theory of local supersation and epitaxy in the urolith growth hypothesis can also be introduced into formation theory of sedimentary oolites,concretes and oncolites. In fact,urolith stones at the incipi-ent formation stage is quite similar to sedimentary oolites,while the recrystalli-zation and replacement of concretes resemble the late stage growth of urolith stones. The thermoluminescent effects of sedimentary oolites and urolith stones are also shown for the first time in this paper. It is demonstrated in this paper that calcareous,dolomitic and siliceous oolites and oncolites can be distinguished not only by differential thermal curves but also by thermoluminescent curves. What is more,struvite,whewellite,uric acid and systine urolith stones might be recognized by infrared absorption curves and by thermoluminescent curves as well.Therefore,a new approach to oolites and urolth stones has been developsd with the thermoluminescence method.