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Concretion
01
凝聚, 聚集
the union of diverse things into one body or form or group; the growing together of parts
02
凝结, 浓缩
an increase in the density of something
03
凝结物, 硬块
a hard lump or mass formed in sedimentary rock by natural cementing processes
04
结石
the formation of stonelike objects within a body organ (e.g., the kidneys)
con
crete
concretion
n
concrete
v
例子
Geologists use concretions as markers to correlate rock layers in different areas.
Concretions often form around fossils, preserving them in sedimentary layers.
Geologists collect concretions for analysis to learn about past depositional conditions.
Geologists study concretions to understand sedimentary rock formations.
The size and shape of concretions provide clues about ancient environments.
