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Conceptual models for fracturing in fault related folds

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Mining Science and Technology 2010年第1期20卷 103-108页

作者： LIN Xiubin CHEN Hanlin CHENG Xiaogan shen zhongyan YANG Shufeng XIAO Ancheng Department of Earth Sciences Zhejiang University Hangzhou 310027 China Research Center for the Structures in Oil and Gas Bearing Basin Ministry of Education Hangzhou 310027 China

Fault related folds and fractures, which always improve reservoirs and trap capacity, especially in the oil and gas fields in western China, are of extreme importance for oil and gas exploration. Based on four assumptions and fault related fold theory, we propose four conceptual models for fracturing in fault related folds, i.e., a simple-step parallel fault bend anticline, a simple-step parallel fault propagation anticline, a multiple-bend fault-bend fold and a break-forward imbricate. Fracture conditions depend on structural evolution and specific site conditions. A case study of the Kulongshan Anticline in the Jiuquan Basin shows that our conceptual models match reality data very well.

关键词： fracturing fault related fold oil and gas exploration

Mantle melting factors and amagmatic crustal accretion of the Gakkel ridge, Arctic Ocean

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Acta Oceanologica Sinica 2015年第6期34卷 42-48页

作者： ZHANG Tao GAO Jinyao CHEN Mei YANG Chunguo shen zhongyan ZHOU Zhiyuan WU Zhaocai SUN Yunfan Key Laboratory of Submarine Geosciences State Oceanic Administration Second Institute of Oceanography State Oceanic Administration East China Construction Engineering Corporation of Zhejiang School of Ocean and Earth Science Tongji University

Spreading rate is a primary factor of mantle melting and tectonic behavior of the global mid-ocean ridges. The spreading rate of the Gakkel ridge decreases gradually from west to east. However, the Gakkel ridge can be divided into four thick-and-thin zones with varying crustal thicknesses along ridge axis. This phenomenon indicates that mantle melting of the Gakkel ridge is not a simple function of spreading rate. Mantle temperature, water content, mantle composition, and other factors are important in crustal accretion processes. Based on gravity-derived crustal thickness and wet melting model, we estimate that the mantle potential temperatures of the four zones are 1 270, 1 220, 1 280, and 1 280℃ （assuming that mantle water content equals to global average value）, with corresponding mantle water contents of 210, 0, 340, and 280 mg/kg （assuming that mantle potential temperature is 1 260℃）, respectivly. The western thinned crust zone is best modeled with low mantle temperature, whereas the other zones are mainly controlled by the enhanced conduction caused by the slower spreading rate. Along the Gakkel ridge, the crustal thickness is consistent with rock samples types. Predominated serpentinized peridotite and basalt are found in the area with crustal thickness 〈1.5 km and 〉2.5 km, respectively. The rock samples are including from basalt to peridotite in the area with crustal thickness between 1.5 and 2.5 km. Based on this consistency, the traditional magmatic accretion zone accounted for only 44% and amagmatic accretion accounted for 29% of the Gakkel ridge. The amagmatic accretion is a significant characteristic of the ultra-slow spreading ridge.

关键词： Gakkel ridge residual mantle bouguer anomaly crustal thickness wet melting amagmatic accretion

The unconformity in Miocene sequence of western Qaidam Basin and its tectonic significance

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Science China Earth Sciences 2010年第8期53卷 1126-1133页

作者： WANG Liang XIAO AnCheng GONG QingLin LIU Dong WU Lei ZHOU SuPing shen zhongyan LOU QianQian SUN XiaoWen Department of Earth Sciences Zhejiang UniversityHangzhou 310027China Beijing Geological Survey Beijing 102206China Institute of China National Petroleum Corporation Zhuozhou 072750China Qinghai Oilfield Company of China National Petroleum Corporation Dunhuang 736202China Lakes Oil Level 14500 Collins StreetMelbourne 3000Australia

An angular unconformity has been identified between the upper and the lower Youshashan Formation based on the study of the regional geology, drillhole, and geophysical data of the Altyn Tagh Mountain foreland, western Qaidam Basin. The distribution of the unconformity, the contacts between the upper and the lower Youshashan Formation, and its relation to the characteristics of the paleo-structure belts suggest a close relationship between the unconformities in the southern flank of the Altyn Tagh Mountain in the west of the Qaidam Basin and the activity of the Altyn Tagh Fault. It was the same time when the Atlyn Tagh Fault Zone was transformed from regional uplifting to rapid-strike-slipping movement during the Miocene, resulting in the cessation of the regional uplift and subsequent massive regional transgression during the deposition of the upper Youshashan Formation, which unconformably overlies (onlaps) the underlying strata of different ages.

关键词： Qaidam Basin Altyn Tagh Fault Miocene angular unconformity strike slip movement

Super Congruences Involving Alternating Harmonic Sums

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Advances in Pure Mathematics 2020年第10期10卷 611-622页

作者： zhongyan shen Tianxin Cai Department of Mathematics Zhejiang International Studies University Hangzhou China Department of Mathematics Zhejiang University Hangzhou China

Let p be an odd prime, the harmonic congruence such as , and many different variations and generalizations have been studied intensively. In this note, we consider the congruences involving the combination of alternating harmonic sums, where PP denotes the set of positive integers which are prime to p. And we establish the combinational congruences involving alternating harmonic sums for positive integer n=3,4,5.

关键词： Bernoulli Numbers Alternating Harmonic Sums Congruences Modulo Prime Powers

Neogene faulting and volcanism in the Victoria Land Basin of the Ross Sea, Antarctica

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Earth and Planetary Physics 2022年第3期6卷 248-258页

作者： Mei Yue JinYao Gao ChunFeng Li Chao Zhu XinZhi Fan Guochao Wu zhongyan shen Han Shi XiaoXian Cai YiDong Guo Ocean College Zhejiang UniversityZhoushan 316021China Key Laboratory of Submarine Sciences Second Institute of OceanographyMNRHangzhou 310012China Key Laboratory of Environmental Survey Technology and Application MNRGuangzhou 528200China Sanya Institute Zhejiang UniversitySanya 572000China Laboratory for Marine Mineral Resources Qingdao National Laboratory for Marine Science and TechnologyQingdao 266061China

The Neogene Terror Rift in the Antarctic Victoria Land Basin(VLB)of the Ross Sea,Antarctica,is composed of the Discovery Graben and the Lee *** Neogene volcanoes are aligned in the north-south direction in the southern VLB,belonging to the McMurdo Volcanic ***,due to multiple glaciations and limited seismic data,the volcanic processes are still unclear in the northern VLB,especially in the Terror *** seismic profiles were collected at the VLB from the 32nd Chinese National Antarctic Research Expedition(CHINARE).We utilized four seismic profiles from the CHINARE and additional historical profiles,along with gravity and magnetic anomalies,to analyze faults and stratigraphic characteristics in the northern Terror Rift and volcanism in the *** flower structures found in the northern Terror Rift suggest that the Terror Rift was affected by dextral strike-slip faults extending from the northern Victoria Land(NVL).After the initial orthogonal tension,the rift transited into an oblique extension,forming a set of downward concaving normal faults and accommodation zones in the Terror *** the Lee Arch,several imbricated normal faults formed and converged into a detachment *** gravitational forces,the strata bent upward and formed a rollover *** deep faults and thin strata subjected to erosion facilitated volcanic activity.A brittle volcanic region in the VLB was affected by dextral strike-slip movements and east-west extension,resulting in two Neogene volcanic chains that connect three igneous provinces in the VLB:the Hallett,Melbourne,and Erebus *** two chains contain mud volcanoes with magnetic nuclei,volcanic intrusions,and late-stage volcanic *** have brought about opposite polarities of magnetic anomalies in Antarctica,indicating the occurrence of multiple volcanic activities.

关键词： Victoria Land Basin Terror Rift seismic stratigraphy gravity and magnetic modeling faulting Neogene volcanic intrusion

The Odd Solutions of Equations Involving Euler-Like Function

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Advances in Pure Mathematics 2021年第5期11卷 440-446页

作者： Jiaxin Wu zhongyan shen Department of Mathematics Zhejiang International Studies University Hangzhou China

φe(n) is a function similar to Euler function φ(n). We discussed and obtained all the odd solutions of the equations φe(xy) = φe(x) + 2φe(y), φe(xy) = 2φe(x) + 3φe(y) and

关键词： Euler-Like Function Diophantine Equation Odd Solutions

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迭代欧拉型函数（英文）

数学进展 2017年第4期46卷 521-528页

作者：沈忠燕浙江外国语学院数学系杭州浙江310012

设q和2q-1都是素数,本文定义的欧拉型函数φ_q(x)把特殊的整数子集D_q分成三类C_q(x).得到C_q(xy)={C_q(x)+C_q(y),如果qx或qyC_q(x)+C_q(y)+1,如果q︱x或q︱y,并利用这些公式研究类的结构和C_q(x)的界,推广了Shapiro,Harrington和J... 详细信息

关键词：欧拉型函数迭代类结构

中国式职业教育现代化的演进逻辑、基本经验与时代特征

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职业技术教育 2023年第1期44卷 14-20页

作者：沈中彦苏州市职业大学苏州215100

中国式现代化离不开中国式职业教育现代化,中国式职业教育现代化的进程不是一蹴而就的,其经过了“模仿职业教育现代化的路径、奠定职业教育现代化的核心、历经职业教育现代化的曲折、提升职业教育现代化的规模、明确职业教育现代化的道... 详细信息

中国式现代化离不开中国式职业教育现代化,中国式职业教育现代化的进程不是一蹴而就的,其经过了“模仿职业教育现代化的路径、奠定职业教育现代化的核心、历经职业教育现代化的曲折、提升职业教育现代化的规模、明确职业教育现代化的道路”五个发展阶段。根据中国职业教育发展历程,中国式职业教育现代化是一种渐进式、持续性、内生型的现代化。当前,我国职业教育以中国特色与世界水平为标准,呈现出“四个相统一”的中国式现代化时代特征,即中国式职业教育现代化是规模与质量相统一的现代化、守正与创新相统一的现代化、适应与引领相统一的现代化以及协同与开放相统一的现代化。

关键词：中国式现代化职业教育演进逻辑经验时代特征

产教融合视角下高职院校科教融汇的理论逻辑、应然策略与实践探索

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高等工程教育研究 2024年第2期 139-144页

作者：温贻芳沈中彦苏州市职业大学

“科教融汇”作为党的二十大报告中的一个创新性表述,指明了职业教育高质量发展的新方向。科教融汇具有多重理论逻辑,历史逻辑上,是高等教育、职业教育发展的趋势;内涵逻辑上,是宏观、中观、微观的统一;价值逻辑上,是支撑国家战略、产... 详细信息

“科教融汇”作为党的二十大报告中的一个创新性表述,指明了职业教育高质量发展的新方向。科教融汇具有多重理论逻辑,历史逻辑上,是高等教育、职业教育发展的趋势;内涵逻辑上,是宏观、中观、微观的统一;价值逻辑上,是支撑国家战略、产业转型、人的发展的基点。产教融合背景下,高职院校科教融汇面临着内、外部的挑战,可以通过更新发展理念、强化师资队伍、建设协同平台、完善评价机制等推动科教融汇在高职院校的落地生根。在实践探索上,苏州市职业大学主动对接产业,集聚各方资源、优化布局搭建多方平台、协作共享融合两支团队、保障完善融汇制度、服务社会发展,实现科研推动产业发展、反哺教学育人的良好局面。

关键词：产教融合科教融汇高职院校高质量发展