Brief introduction of village camp in Zhangjiagoumen village;
Watermelon Garden Layer of Yixian Formation in the overlying stratum: grayish white and grayish brown massive conglomerate mixed with thin-medium yellow-green gravelly fine sandstone, forming rhythm.
Middle-upper part of Dadian sub-layer of Yixian Formation (equivalent to 3 ~ 4 sections of original Dadian sub-group): 425.73 m.
Figure 2-2- 18 Boundary Strata of Menyi County, Zhangjiagou, Huodoushan Township, Luanping Basin, Northern Hebei (Shangying, Xia Ying and Lower Yushu)
34. Grayish brown, gray mudstone and shale, with several layers of marl lenses or thin layers. Fish production; Ostracoda: sulcus scale subclass, space scale subclass; ; Ye Zhijie: Gillies. Diest-Rhea species. Dianthus Yanji (Yanshan) species. 18.96m
33. Dark gray shale, sandwiched with 4 ~ 5 marl thin layers or lenses, with a thickness of 50 ~ 80 cm. Ostracoda in Central China: Cyprinidae, Cyprinidae in Chengde, Swallowtail in Dabeigou, Cyprinidae in Longbract, Cyprinidae in Dadianzi, etc. Ye Zhijie: Dryopteris Jilin, Dryopteris Yanji (Yanshan) Dabeigou subspecies12.06m.
32. Dark gray shale, mixed with a small amount of marl thin layer or lens, with a thickness of 10 cm. The marl layer increases upward and the thickness increases, and the maximum thickness reaches1m. Top fish yield: lycopodium. Ye Zhijie: cornflower, Lingyuan cornflower, died in RIA sp. 14.59 meters.
3 1. Gray shale interbeds with medium-thin (or lenticular) marl and fine sandstone. Ostracoda; Ye Zhijie: Jil-iaoestheria striaris, Yanjiestheria (Yanshania) Dabei Gouensis, Eosestheria sp., died in RIA sp. 18.48m
30. Grayish brown calcareous silty mudstone and fine sandstone are mixed with mudstone, shale, kaolin siltstone and sandstone of the same color. Bottom Ostracoda: Cyprinidae, Sarcophagidae, Timilidae; ; Ye Zhijie: Gujialing, Dabeigou, Yanji Shijie18.48m.
29. taupe shale and oil shale. Insecta: Yanji Dabeigou subspecies11.84m.
28. Gray mudstone is sandwiched between thin layers-extremely thin layers of marl and calcareous shale, with lens marl in the middle and upper parts. Phyllostachys pubescens: Dendrocalamus dabeigou11.39m.
27. taupe shale and tawny marl, with a thickness of 0.5 ~1.0 m. Phylogenetic Ostracoda: Jiliaoestheria gujalingensis (Niu), Eosestheria sp., died in RIA sp. 3.63 meters.
26 taupe shale, thin-very thin calcareous shale and marl interbedded. Insecta: Gujialingjiang Formation, Flower Egg Formation and Striate Formation.
25. Yellow-brown mud shale, khaki thin calcareous shale and marl form a rhythm of 2 ~ 3 m thick. Phyllostachys praecox: Phyllostachys praecox17.46m.
24. The grayish brown and gray silty mudstone is mainly gray in the middle and upper parts, and the argillaceous content increases. Leaf-producing Ostracoda: Geely Subclass-Gujialin Subclass, Frova Subclass, Striata Subclass; ; Ostracoda is 23.74m in central China.
23. Brown yellow and gray thin-very thin siltstone interbedded with silty mudstone. The middle and upper parts are sandwiched with several thin layers of fine sandstone with a thickness of less than 20 cm, forming an anti-rhythm. Ostracoda: Yanshan suborder. ; Bivalves; Ye Zhijie: Gugariella jiliao, J.florovalvaris, Eosestheria sp. Zhangjiagou, China. (di. ) Luanping is 5.82m.
22. Yellow-brown thin-layer medium-fine sandstone and sandy siltstone. Ostracoda: Cyprinus carpio, Oncomelania hupensis, Oncomelania dabei, Oncomelania hupensis, Oncomelania hupensis; Ye Zhijie: 3.98 meters from Gujialin, Jiliao.
2 1. Yellow-brown plate-like oblique bedding medium-coarse feldspar timely sandstone is sandwiched with 30 ~ 50 cm yellow-green silty mudstone, and the upper part is 3.96 m thick green-gray silty mudstone.
Lower part of Dadian sub-floor (equivalent to Section 2 of the original Dadian sub-floor):
20. The lower part is yellowish brown calcareous siltstone and taupe siltstone; The upper part is taupe calcareous mudstone, with calcareous lumps, calcareous mudstone lenses, calcareous bands or layers locally, and silty sand and sandy soil increase to the top or upper part. Insecta: Aedes donggou, Aedes Yanji and Aedes Yanji; Ostracoda: Luanping Cyprinidae; ; Bivalves: red snail from Lingyuan, red snail from Yanshan, 25.80m.
19. The lower part is silty mudstone with three thin layers of medium-fine sandstone, and the bottom is grayish brown calcareous medium-fine sandstone lens; The upper part is calcareous mudstone, the middle and lower part is thin-layer fine sandstone, and the upper part is 1 grayish green calcareous mudstone; The top is grayish brown silty mudstone. Bamboo sun: Lingyuan soft jujube; ; Gastropoda: Protobranchia. (English); ; Arachidae: Acacia pinnata, Acacia donggou, Acacia Bella and Acacia Dabeigou; Ostracoda: Luanping carp, sub-particle carp (including original particle carp and particle carp), tumor-like ostracods, ostracods, ostracods, ostracods, ostracods, ostracods, ostracods, ostracods, ostracods, ostracods, ostracods, ostracods, ostracods, ostracods, ostracods, ostracods, ostracods, ostracods, ostracods, ostracods, ostracods, ostracods, and ostracods.
18. taupe calcareous mudstone mixed with marl or lens. The lens with calcareous medium-fine sandstone at the bottom is 3.50m.
17. taupe calcareous mudstone with marl lens. There are calcareous medium-fine sandstone lenses with a thickness of 0.2 ~ 2 m and sandstone with a thickness of 6.62 m at the bottom.
16. Gray-yellow-green calcareous mudstone and siltstone, containing marlite lenses or thin layers. Dictyophora: Lingyuan soft-shelled Dictyophora 9.34m.
15. Grey and taupe sandstone. The bottom is calcareous gravelly coarse sandstone with large oblique bedding1.92m.
14. taupe medium-thin sandstone and siltstone, with composition rhythm of 6.41m.
13. The lens of a large yellow-brown trough-shaped cross-layered calcareous sandstone is 0.64m.
12. Formation rhythm of gray-green and gray-white thin-layer wavy fine sandstone and silty mudstone. Sandwiched with 4 ~ 5 layers of sandstone, the thickness of sandstone increases upwards, and the reverse sequence deposition is 2.56 m.
1 1. Yellow-green calcareous mudstone. The bottom is 1 layer 5 ~ 10 cm thick khaki calcareous mudstone. Leaf-producing ostracods: Donggou Ostracoda, nearly ovoid Ostracoda; ; Gastropoda: long fin snail 3.85 meters
10. Gray-green mudstone with marl lens. The bottom of 1 layer is calcareous medium sandstone with a thickness of 0.5 ~ 1 m and a thickness of 7.40m m.
9. Grayish yellow-green silty mudstone. There are two sedimentary rhythms in the medium sandstone lens with large oblique bedding and granular bedding with a bottom thickness of1~ 2 m. Leaf-bearing branches are 2.96 meters
8. Gray-white silty mudstone and calcareous mudstone. The bottom is 1 calcareous medium sandstone1.96m.
7. Gray-green clingy calcareous sandstone and mudstone form rhythmic layer. Sandstone is10 ~ 20cm thick and mudstone is 4.02m thick.
6. Gray-yellow-white coarse siltstone and mudstone constitute the rhythmic layer. The bottom is calcareous medium sandstone with a thickness of 0.5 ~ 1.5 m, with large cross bedding, and the middle and upper sandstone and fine sandstone increase, which is 6.03 m reverse deposition.
5. Gray-green gravelly coarse sandstone, coarse siltstone and mudstone form two opposite rhythms. The bottom is gray-white large cross-bedded calcareous medium sandstone, and the middle sandstone is lenticular1.77 m.
4. The lower part is grayish brown calcareous medium sandstone-gravelly coarse sandstone, which constitutes reverse deposition; It gradually becomes sandstone, mudstone interbedded and grayish green mudstone 4.02m upward.
3. Calcareous gravelly medium-coarse sandstone, with a thickness of 0.5~0.8 m, with large cross bedding at the bottom, consisting of two rhythms, and mudstone is gradually mixed. With the increase of thickness, the rhythmic layer of thin sandy mudstone is 4.02 m.
2. Gray-green mudstone. The bottom is calcareous medium-coarse sandstone with a thickness of 0.3 ~ 1 m, which is a medium-thin coarse siltstone-fine sandstone lens with large plate-like cross bedding, and the middle is a rhythmic layer of fine sandstone and mudstone with a thickness of13.40 m.
1. Gray-green silty mudstone and siltstone. The bottom is 30 cm gray-green coarse sandstone,1.34m.
0. Very thick conglomerate > 3.00m.
Next to Xia Ying Section of Zhangjiagoumen Village:
32. (equivalent to 0 layer of Shangying section) Brown massive huge conglomerate mixed with fine conglomerate and gravelly coarse sandstone, with a thickness of 5.80m.
Lower part of Dadian sublayer (equivalent to the original Dadian sublayer 1 section):
3 1. The lower part is gravelly coarse sandstone and fine conglomerate, containing a lot of mud and gravel; The middle part is argillaceous medium-fine conglomerate with massive bedding-trough cross bedding-parallel bedding; The top is kaolin clay rock, 3.87m.
30. Gray brown silty calcareous mudstone 6.45m.
29. Feldspar timely sandstone, thick-extremely thick layer, big trough bedding, with gravel1.20m at the bottom.
28. Gray-green siltstone 3.0 1 m
27. grayish brown medium-grained feldspar timely sandstone with large oblique bedding and parallel bedding, containing a small amount of siltstone 4.21m.
26. Sandstone and grayish yellow clayey siltstone form four rhythms, with a thickness of 0.5 ~ 1~2 m, and feldspar sandstone at the bottom, with a thickness of 1~2 m and a thickness of 9.63 m.
25. Grayish brown and grayish green silty mudstone, with 0.5 m thick medium and slender timely sandstone at the bottom of 2.4438+0 m.
24. Yellow-green, gray-green calcareous mudstone, siltstone, argillaceous mudstone, marl lens 6.62m.
23. Black papery mud shale mixed with thin silty marl and calcareous fine sandstone with yellow calcareous shale. Bamboo sun: Lingyuan soft jujube; ; Ostracoda: Cyprinidae from West Taiyangpo, Cyprinidae from Dabeigou, Swallowfish from Dabeigou, Cyprinidae from Back Truncate, Cyprinidae from Longitudina, Cyprinidae from Rhinoceros in North China, Cyprinidae from Jiangkou and Yumen. ，Timiriasevia polymorphipga 9. 15m。
22. The bottom of the lens body is yellowish brown calcareous argillaceous siltstone mixed with marl; The middle part is gray, grayish yellow calcareous mud and shale; The top is pure feldspar timely sandstone. Ostracoda; Cyprinidae Yanshan species. , rhinoceros species. , Timiriasevia sp .3.05
2 1. Gray-green clayey mudstone, with 30cm-thick tabular oblique bedding red sandstone at the bottom and gray calcareous shale and siltstone at the top. Ostracoda: Cyprinidae in Dabeigou, Swallow in Dabeigou, Swallow in Back Section, Swallow in Long Angle and Swallow in Black Tail; Ostracoda: Donggou stone moth, nearly ovoid stone moth, ovoid stone moth 30.22 meters.
20. Grayish brown fine powder sandstone and silty mudstone; The middle and upper part is gray-green calcareous mudstone, and the extremely thick part is mixed with silty mudstone. Bivalves; Coccidium yoelii; ; Gastropods; Protobranchia; ; Ostracoda: Yanshani-Nachangci carp, Changci carp, Dabeigou carp, Changci carp, Changci carp, Changci carp, Changci carp, Changci carp.
19. Brown sandstone, with coarse siltstone or fine sandstone 20 cm thick at the bottom and silty mudstone 8.4 1 m at the top.
18. The gray-green clayey mudstone is mixed with a large number of brown marl lenses, and the middle and upper parts are mixed with 1 layer of fine sandstone with a thickness of 30 cm. Bivalves: Soft Shellfish from Lingyuan and Coccidium yoelii; ; Gastropods; Spiral snail Ostracoda: long and narrow sandpiper, sub-granular sandpiper, post-truncated Yansha, Dabeigou sandpiper, Jiujialigasaiduowei 9.34m.
17. brown medium-fine grained feldspar timely sandstone 0.93m.
16. khaki siltstone 0.96m.
15. Medium-thick yellow layer with medium-grained sandstone of 0.24m.
14. The lower part is medium-coarse sandstone; The upper part is yellow-green siltstone, 0.96m.
13. Fine sandstone with grayish green clayey mudstone and marl lens 3.83m.
12. Grayish green clayey mudstone with grayish yellow marl lens body 8.38m.
1 1. grayish yellow medium-coarse grained feldspathic sandstone mixed with clayey mudstone, with trough-shaped cross bedding and parallel bedding1.20m.
10. Gray-green and green-gray clayey mudstone 3.35m.
9. Yellow-brown calcareous mudstone with siltstone and marl lens. Leaf-producing ostracods; Acacia subovate; ; Ostracoda: long and narrow sandpiper, long sandpiper, Dabeigouyan, sectional sandpiper, long sandpiper and long sandpiper. 7.80 meters
8. The bottom is 50 cm yellowish brown gravelly coarse sandstone with oblique bedding, the middle is brownish yellow coarse siltstone, and the top is gravelly coarse sandstone with trough cross bedding1.19 m..
7. Yellow-green silty mudstone, locally mixed with sandstone and marl lens. Ostracoda: Late Yanshanian, 2.77 m.
6. Thick feldspar timely sandstone, calcareous cementation, reverse sequence structure, gradual transition between top sandstone and overlying mudstone, and trough cross bedding of 0.79m.
Dabeigou Formation:
5. Medium-thick coarse-grained feldspar is rhythmic with sandstone and grayish-green silty mudstone, with a small amount of marl lens, and four rhythmic layers are developed, with medium oblique bedding, 4.36m.
Next to the lower segment of Yushu in Zhangjiagoumen Village:
Bottom of Dadian sublayer (equivalent to the bottom of original Dadian sublayer 1 section):
2 1 .tan fine conglomerate and gravelly coarse sandstone1.83m.
Member 2 of Dabeigou Formation:
20. Yellow-green medium-thin silty mudstone. Ostracoda: Suri early ape, Jingshan early ape, Obersha early ape, bean early ape; ; Ye Zhijie: Niesto Riya Pisov10.96m.
19. Yellow-green calcareous mudstone, dark gray mudstone, shale, medium-thin calcareous mudstone and marl lens form four rhythms. Ostracoda: Lepidoptera acuta, Lepidoptera recurvata, Lepidoptera annulata, Lepidoptera acuta, Lepidoptera jingshanensis, Lepidoptera gigantea, Lepidoptera pseudolepidoptera, Hemiptera, Cyprinus yunnanensis, Equisetum equisetum, Djungarica sp. 1, D.sp.2, Darwinula sp .；; Ostracoda: the lower layer is N.xishunjingensis, N.cf.rotalaria, and the upper layer is n. sp. sishunjingensis, n.sp.18.27m.
18. The bottom is a rhythmic layer composed of calcareous silty mudstone, siliceous mudstone and gray and gray limestone lenses, the lower part is khaki calcareous mudstone with lenticular marl or calcareous mudstone in the middle of thin layer, and the upper part is calcareous siltstone and fine sandstone with extremely thin layer of calcareous mudstone. Ostracoda: Post-Luanping Ostracoda, Jingshan Early Paraostracod, Suri Ostracoda, Pea Ostracoda, Dadianzi Ostracoda, Neoostracod; ; Ostracoda: the lower part is Nestor xishunensis, Rhomboma ovata and the upper part is Nestor xishunensis, Rhomboma gigantea and Clam gigantea, 59.43 meters.
Dabeigou Formation 1 section:
17. grayish yellow and grayish green tuffaceous medium-coarse grained sandstone 7.94m.
16. Gray-green fused tuff 1.77m
15. yellow-brown striped bedding medium-thin calcareous siltstone and silty mudstone 5.45m.
14. Yellow brown mudstone with thin medium siltstone in the middle. Insecta: codling moth, N. xishunjin; ; Insect: Mayfly with three petals, 20.88m.
13. Medium-thin calcareous mudstone mixed with black shale and grayish yellow siltstone. Phyllostachys pubescens: Phyllostachys pubescens1.39m.
12. The yellowish brown siltstone is mixed with 5 ~ 10 cm calcareous mudstone. Insectivora: Chrysopa xylostella, Chrysopa occidentalis, Chrysopa Caraghin, Chrysopa verticillata1/.88m.
1 1. yellowish brown siltstone and silty shale. The lower part is siliceous calcareous shale containing marl lens. 5.28 meters
10. taupe siliceous and calcareous shale. Insecta: Woodmoth, N. Sishunjing Woodmoth, N. Karamoth, N. Woodmoth, N. Blind stinkbug1.92m.
9. Brown medium-coarse grained feldspar timely sandstone and siltstone 0.96m.
8. Yellow-brown silty sandstone and silty mudstone mixed with thin calcareous shale. The bottom is dark gray striped layered calcareous and siliceous mudstone, and the top is brownish black siliceous shale. Insectivora: nadia, J.spp, N. Xishun Jinshi, N.krasinetzi, N. Karaica 5.28 meters.
7. Gray-yellow medium-thin siltstone with several layers of calcareous shale and marl, with a thickness of 0.5 m. Ye Long: codling moth; ; Produce plant fragments 9.12m.
6. Dark gray flakes, layered siliceous shales and brownish-yellow calcareous shales, with marl lenses in between. The top is a high-frequency rhythmic layer composed of thin siliceous shale and siliceous shale, and the top is gray-green mudstone mixed with silty mudstone. Insecta: Nestoria xishunensis, N.pissovi, N. Luanping, N.karaica, N.krasinetzi, Yanjiestheria (Yanshania), Nestoria xishunensis, Y. Subovata 7.25m
5. Yellow-brown thin medium coarse siltstone mixed with lenticular fine sandstone and siliceous mudstone. 3.02 meters
4. The grayish brown thin interlayer is composed of siliceous and calcareous mudstone mixed with thin silty mudstone. Leaf-producing OSTRACODA: Coccidiphera, Yanjie Shili (Yanshan) Xishun Jinshi 6.04m.
3. Light grayish yellow coarse siltstone and fine sandstone, consisting of five rhythmic layers of 4.23m.
2. Grayish brown striped layered mudstone, thin siliceous mudstone and siliceous shale, with tuffaceous fine sandstone at the top. Ostracoda: Luanping clam with sharp tail, 2.42m.
1. Light taupe medium-thick layer, interbedded with layered siliceous mudstone and khaki silty mudstone. Insecta: Asteris (Asteris), Asteris, Asteris, N. Asteris is 4.23m, with a total thickness of191.38m.
The underlying Zhangjiakou Formation: rhyolite and Qiangignimbrite.