岗巴群
指“吉里灰岩”、“岗巴页岩”和“半星海胆页岩”的总称，时代属早白垩世至晚白垩世。分布于西藏珠穆朗玛峰地区的岗巴、定日等地。命名地在岗巴附近。为浅海相泥沙质、灰质沉积，主要为灰黑色页岩夹泥灰岩和砂岩，厚1187米。底部含白垩纪最早期的菊石Neonoproceras sp.等，上部含菊石Cavycoceras newboldi，海胆Hemiaster frontacutus，双壳类Pycnodonte等晚白垩世初期化石，中部含早白垩世的菊石Mortoniceras sp.等，与下伏地层关系不清。本群已自下而上进一步划分为：岗巴东山组、察且拉组、冷青热组、夏吾除波组、旧堡组。
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Contributor
contributed at 2011-10-11
Classification(s)
●
Earth System(in Chinese) Geostratigraphic stratigraphy
Detailed Description
| English |
|---|
| Name | Gamba Gr |
| Chinese |
|---|
| Name | 岗巴群 |
| Description | 指“吉里灰岩”、“岗巴页岩”和“半星海胆页岩”的总称，时代属早白垩世至晚白垩世。分布于西藏珠穆朗玛峰地区的岗巴、定日等地。命名地在岗巴附近。为浅海相泥沙质、灰质沉积，主要为灰黑色页岩夹泥灰岩和砂岩，厚1187米。底部含白垩纪最早期的菊石Neonoproceras sp.等，上部含菊石Cavycoceras newboldi，海胆Hemiaster frontacutus，双壳类Pycnodonte等晚白垩世初期化石，中部含早白垩世的菊石Mortoniceras sp.等，与下伏地层关系不清。本群已自下而上进一步划分为：岗巴东山组、察且拉组、冷青热组、夏吾除波组、旧堡组。 |
How to Cite
NNU_Group (2011). 岗巴群, Concept & Semantic, OpenGMS,
https://geomodeling.njnu.edu.cn/repository/concept/122c7d27-405c-4317-b3c1-58898969abf4
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