| 1. | These internal - tide deposits can be classified into four basic types according to their features , i . e . , bi - directional cross - laminated fine - grained sandstone , unidirectional cross - bedded and bidirectional cross - laminated medium - grained to fine - grained sandstone , rhythmic thin alternating beds of sandstone and mudstone , and oolitic limestone
这些内潮汐沈积进一步划分? 4种类型：双向交错纹理细砂岩型、单向交错层和双向交错纹理中细砂岩型、韵律性砂泥岩薄互层型和鲕粒灰岩型。 |
