生物礁岩分类方案

本文系统地提出了一个生物礁岩分类的新方案。生物礁岩首先根据次生组分的有无分为原生礁岩和次生礁岩。次生礁岩根据次生组分来源分为骨源次生礁岩和礁源次生礁岩。次生礁岩的二级分类根据次生组分的含量进行。骨源次生礁岩分为骨屑岩和含骨屑礁（灰）岩、倒骨央和含倒骨礁（灰）岩；礁源次生礁岩分为礁屑岩和含礁屑礁（灰）岩。骨屑岩根据次生组分的粒度分为巨骨砾（屑灰）岩、骨砾（屑灰）岩、细骨砾（屑灰）岩、骨砂（屑灰）岩；

CLASSIFICATION OF REEF ROCKS

Reef rocks are classified into primary ones and secondary ones. Primary reef rocks include framestone, bafflestone, prebafflestone, bindstone and coverstone. The framestone, baffle-stone, prebafflestone are called by a joint name erectistones. Secondary reef rocks contain secondary components, i. e. , grains formed from reefbuilders or reef rocks, and thus are classified into biosubstones having reef builder's fragments or skeletons, and reefsubstones having fragments of reef rocks. Biosubstones are divided into biorudstones whose secondary components are in contact and biofloated rocks whose secondary components are floated. The biorudstones whose secondary components are overturned whole skeletons rather than fragments are named bioly-stones. Reefsubstones are divided into reefrudstones whose secondary components are in contact and reefloated rocks whose secondary components are floated. Biorudstones are further classified into biobouldstone, biocobstone, biogranustone and biosandstone according to the size of the secondary components. Reeffrudstones are further classified into reefbouldstone, reefcobstone, reef-granustone and reefsandstone according to the size of the secondary components. Biofloated rocks are divided into biobouldfloated, biocobfloated, biogranufloated and biosandfloated rocks. The biofloated rocks whose secondary components are whole skeletons rather than fragments are named biolyfloated rocks. Reefloated rocks are divided into reefbouldfloated, reefbobfloated, reefgranufloated and reefsandfloated rocks.