volcanic cycle的例句大全

Taking Mesozoic volcanic rocks in Eastern Fujian as an example, the authors put forward a new cartographic unit of volcanic terrains ( volcanic cycle, volcano tectonic element and lithofacies assemblage), in which the volcano tectonic element is a basic cartographic unit.

以福建省东部中生代火山岩为例，提出以火山旋回-火山构造单元-岩相（组合）作为火山岩区的三级填图单位，其中火山构造单元为基本的填图单位。

In time, it also shows the sequence the volcanic eruption-magmatic intrusion cycle.

在时间上表现为序列性，即火山喷发&岩浆侵入旋回；

This state is typically the last in the life cycle of an island, the first being volcanic and the second being an atoll.

珊瑚岛是岛屿形成过程中的第三个阶段。第一个阶段是火山活动形成岛屿，第二个阶段就是环礁岛。

The basic volcanic rocks of the first cycle belong to the alkali basalt magma series and those of the second and the third cycles the tholeiitic magma series.

第一旋回基性火山岩属碱性系列，第二、三旋回基性火山岩属拉斑玄武岩系列。

the higher alkali volcanic lavas are the results of twice cyclic volcanic activities, the grey purple lava dominating in the early cycle and the grey green in the late cycle. the two kinds of lava are similar in mineral aggregate and texture and structure.

偏碱性火山熔岩为两次火山活动旋回产物，早期火山旋回以灰紫色火山熔岩为主，晚期火山旋回以灰绿色火山熔岩为主，二者在矿物或分、结构构造上均相似。

Volcanic rocks of each cycle have their own features, reflecting different geneses.

不同旋回火山岩具有不同的地质、地球化学特征.