the most favorable microfacies belt is subordinate organisms and sparry grain dolomite microfacies, the more favorable microfacies belt is non-lamina dolomite mudstone microfacies.

• 最有利微相类型是生物粘结云岩微相和亮晶颗粒云岩微相,较有利的微相类型是非纹层纯云泥岩微相。