devonian造句
31. The discovery of the Silurian - Devonian oil and gas reservoir reveals a good exploration prospect.
32. The strata in Devonian period of Shuangwang area was divided in detail, going by new mapping theory and method of the regional geological survey.
33. The Xinjiang area was characterized by tropical-subtropical climate in the Devonian, and obviously climatic zonation in the Carboniferous due to the global climatic change.
34. The sedimentary environments of the Devonian carbonate formations in southern Hunan, China can be divided into four types: platform, open marine shelf, bioherm, and platformbasin facies.
35. A global correlation of the graptolitic strata of this interval is preliminarily proposed, and the biogeographic distribution of Early Devonian graptolite species is discussed in the present paper.
36. In the Ordovician, Silurian Period, the Devonian, Carboniferous, the advent of low amphibians and ancient ancient reptiles.
37. Mineral, palaeontology, middle devonian, permian to early jurassic, and cretaceous.
38. On the basis of current information, the Devonian porifera bioherm is the first discovery, it not only richens the type of bioherm in Guangxi, but also ...
39. The sedimentary basin of Devonian in Southern Guizhou , South China is euxinic.
40. Carboniferous:Of, belonging to, or denoting a geologic division of the Paleozoic Era following the Devonian and preceding the Permian.
41. Accessorial types such as fern and its spore, gymnosperm and its pollen appeared from Devonian to Jurassic.
42. The iron bearing formations mainly occur in the Middle and, especially, Upper Devonian strata.
43. The Devonian and Carboniferous strata of Novaya Zemlya can be generally divided into the Barents and Kara facies zones.
44. Its materials might come from both magmas and host rocks, indicating that it was formed when the ichor (or hydrothermal solution) replaced the Devonian siliceous shale and so on.
45. According to the conodont and fusulinid fossils, their ages are determined to be Devonian -Permian.
46. In the melange zone there occur Devonian island arc-type intermediate and intermediate-acid volcanic rocks, which conformably overlie siliceous pelite.
47. It was found that there exit paleo- reservoir in Devonian stratum, Tianjingshan structure, in course of investigation of oil - sand resource in the northwest part of Sichuan Basin.
48. The hydrofracturing breccia is formed by deep rich- sodic and gold-hosted fluid hydrofracturing in a set of Devonian system hot-water sedimentary rich- sodic rocks.
49. The characteristic of Devonian strata and mineral resources in Guangxi are briefly introduced.
50. The allochthon consists of the Presinian, Sinian and Cambrian system. The autochthon comprises the Devonian and Carboniferous system.
51. This area was in an arc and rear - arc basin on convergent plates in the Middle Devonian.
52. The 'layer-reef' in South China is similar to the 'low reef' of Devonian period in Canada and the 'mound reef' is similar to the 'high reef' of Devonian period in Canada and Devonian reefs in Germany.
53. Near the end of the Devonian period, 370m years ago, many species of fish and 70% of marine invertebrates perished. The reason is unclear.
54. The Late Devonian - Middle Jurassic depositional systems in Fujian Province arereconstructed in the paper.
55. Based on sequence stratigraphy work for the outcrops in Tarim Basin, The author sets up the Sealevel changes curve of sinian period to Devonian period.
56. The clastic rock reservoirs of Upper Devonian and Silurian and the carbonate reservoirs of Middle and Lower Ordovician are mainly distributed in the peri-cline area around central Tarim basin.
57. Comprehensive researches have concluded that the Heishan ophiolite was formed in Nanhua Ordovician period and its structural location in Silurian period early Middle Devonian epoch.
58. The Ellsworth basin lay between the epicontinental basin and the marginal magmatic arc during the Devonian.
59. During the Devonian period, northward of Longmen Mountain structural belt is located in northwest border of Up Yangtzee Ancient Land.
60. The clastic rock reservoirs of Upper Devonian and Silurian and the carbonate reservoirs of Middle and Lower Ordovician are mainly distributed in the pen- dine area around central Tarim basin.
123