Deltaic sedimentation in the Lake Hazar pull‐apart basin, south‐eastern Turkey
Deltaic sedimentation in the Lake Hazar pull‐apart basin, south‐eastern Turkey
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土耳其东南部哈扎尔湖拉分盆地的三角洲沉积
DOI：
10.1111/j.1365-3091.1984.tb00868.x
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发表时间：
1984
期刊：
影响因子：
3.5
通讯作者：
M. Hempton
中科院分区：
文献类型：
--
作者：
L. Dunne;M. Hempton
哈扎尔湖位于土耳其东南部东安纳托利亚转换断层沿着的一个小型拉分盆地内。三角洲形成于河流流入低能湖泊环境的地方。组成三角洲的相包括三角洲平原碎屑流、辫状河和边缘湖相沉积;三角洲前缘前积和河口坝沉积;前三角洲和湖泊沉积。这些相在空间上受到限制，具有急剧的过渡。相序和相关系显示了两种不同的三角洲沉积样式。具有吉尔伯特型三角洲特征的三角洲。河口坝三角洲发育在盆地的轴向水系流入湖泊的地方。这两种三角洲类型的分布被认为是梯度的函数，并受相对于盆地内断层的位置控制。
Lake Hazar lies within a small pull-apart basin along the East Anatolian Transform Fault in south-eastern Turkey. Deltas are formed where streams debouch into the low-energy lacustrine environment. The facies constituting the deltas include delta plain debris flow, braided stream, and marginal lacustrine deposits; delta front foreset and mouth bar deposits; prodelta and lacustrine deposits. The facies are spatially restricted with sharp transitions. Facies sequences and relationships indicate two distinct styles of deltaic sedimentation. Fan deltas with a tripartite structure characteristic of Gilbert-type deltas comprise the marginal drainage system and form along the basin margins. Mouth bar deltas develop where the axial drainage system of the basin debouches into the lake. The distribution of the two deltaic types is thought to be a function of gradient and controlled by position relative to faults within the basin.