Several fold belts approach the Laptev Sea from different sides, and their tracing through the shelf is ambiguous. The only way to reconcile geological facts is to suggest that the Verkhoyansk–Chukotka fold belt occupies most of the Laptev Sea shelf in the form of an orocline folded in two. The Verkhoyansk fold belt is composed mainly of deformed sediments accumulated during the late Paleozoic and early Mesozoic on the passive continental margin. The oroclinal structural model may be validated by tracing the edge of the continental shelf imprinted in Permian rocks, which are the only stratigraphic level available all over the sea periphery. This has been done for the southwestern, western, and eastern shores of the Laptev Sea. For the last locality, i.e., for the New Siberian Islands, the initiation and evolution of the late Paleozoic rifted continental margin facing the Laptev Sea was also outlined. Following the oroclinal model, the tectonic partitioning of Taimyr and Severnaya Zemlya is tentatively traced to the opposite side of the Laptev Sea. We assert that three Taimyr belts (South, Central, and North) are not separated by Paleozoic or Mesozoic sutures and are distinguishable by different composition and depositional settings of lower Paleozoic sedimentary rocks formed on the marginal part of the Siberian continent. In particular, the North Taimyr belt is interpreted as a foreland basin developed during the collision of Siberia with Baltica in the late Ediacaran – Early Cambrian. Ordovician volcanic and plutonic belt in the eastern October Revolution Island we assume to be a riftogenic one, which is coeval with similar igneous occurrences of De Long Islands on the opposite side of the Laptev Sea. The Ordovician rifting could have initiated the opening of the Taimyr branch of the Ural Ocean, which, however, did not leave behind any material evidence. The most probable position of the suture is the Shokalsky Strait (separating Bolshevik and October Revolution Islands) and the shelf area along its strike. The collision of Siberia with the Kara block of Baltica occurred once again in the Late Paleozoic. Three fold belts largely shape the modern structure of the Laptev Sea region: the late Paleozoic North Taimyr belt, the Late Triassic South Taimyr one, and the Late Jurassic-Neocomian Verkhoyansk. All above orogenic belts were formed not at the boundaries of lithospheric plates but mainly at sites of extended and thinned lithosphere. These were the foreland basins of previous orogenies for the first two belts; and rifted passive continental margin for the last one. Revealed recent structure of the Laptev Sea region opens up the prospect of restoring pre-Cretaceous paleogeography when the relative position of continental blocks was quite different.

几条褶皱带从不同的侧面接近拉普捷夫海，它们穿过大陆架的轨迹是模糊的。调和地质事实的唯一方法是表明 Verkhoyansk-Chukotka 褶皱带以一分为二的山跃层形式占据了拉普捷夫海陆架的大部分。Verkhoyansk 褶皱带主要由晚古生代和早中生代在被动大陆边缘堆积的变形沉积物组成。可以通过追踪印在二叠纪岩石中的大陆架边缘来验证斜坡结构模型，这是整个海洋外围唯一可用的地层。这已经在拉普捷夫海的西南、西部和东部海岸完成。对于最后一个地方，即新西伯利亚群岛，还概述了面向拉普捷夫海的晚古生代裂谷大陆边缘的起源和演化。根据斜坡模型，泰梅尔和北地岛的构造划分初步追溯到拉普捷夫海的对面。我们断言，三个泰米尔带（南部、中部和北部）没有被古生代或中生代缝合线分开，并且可以通过西伯利亚大陆边缘部分形成的下古生代沉积岩的不同成分和沉积环境来区分。特别是，北泰米尔带被解释为埃迪卡拉纪晚期-寒武纪早期西伯利亚与波罗的海碰撞形成的前陆盆地。十月革命岛东部的奥陶纪火山和深成岩带我们假设是一个裂谷带，这与拉普捷夫海对面的德朗群岛的类似火成岩同时代。奥陶纪裂谷可能引发了乌拉尔洋泰米尔支流的开裂，但并未留下任何物证。缝合线最可能的位置是绍卡尔斯基海峡（布尔什维克群岛和十月革命群岛的分界线）及其走向沿线的陆架区。西伯利亚与波罗的海卡拉地块的碰撞在晚古生代再次发生。三个褶皱带在很大程度上塑造了拉普捷夫海地区的现代构造：晚古生代北泰米尔褶皱带、晚三叠世南泰米尔褶皱带和晚侏罗世-新科纪维尔霍扬斯克褶皱带。上述造山带均不形成于岩石圈板块边界，主要形成于岩石圈拉张变薄部位。这些是前两个带的先前造山运动的前陆盆地；最后一个裂谷被动大陆边缘。拉普捷夫海地区近期构造的揭示，为在大陆板块相对位置差异较大的情况下恢复前白垩世古地理开辟了前景。