The evolution of the Neo-Tethys Ocean had a profound effect on global climate change and the evolution of life. To better constrain the Cretaceous paleogeographic position of the Tethyan Himalaya and evolution of the Neo-Tethys Ocean, combined paleomagnetic and detrital zircon UPb geochronological research was performed on samples from the Gyabula Formation, constrained at ca. 117.7–94.4 Ma, in the Zhongba area of the northern Tethyan Himalaya. Both positive fold and reversal tests combined with a maximum grouping at 106% unfolding indicate that the high-temperature component directions were acquired before folding and were most likely of primary origin. The tilt-corrected directions yielded a paleopole at 29.2°N, 280.5°E with A₉₅ = 5.1° and a corresponding paleolatitude of −29.0° ± 5.1°N for the sampled area (29.7°N, 84.0°E). No significant inclination shallowing was identified from the sampled cherts. Comparison of the observed paleolatitude with those expected from the Indian craton indicated that an 840 ± 670 km north-south distance existed between the northern Tethyan Himalaya and the Indian craton for the reference point (29.7°N, 84.0°E). Because of the anticlockwise rotation of the Indian craton, this amounts to a crustal extent of 1130 ± 900 km at ca. 106 Ma, which represents the amount of north-south crustal shortening. Our new results, together with reliable Cretaceous paleomagnetic data obtained from the Tethyan Himalaya, indicate that no wide oceanic basin extended between the Tethyan Himalaya and Indian craton at ca. 106–75 Ma and that there was still a contiguous Indian subcontinent.

新特提斯洋的演化对全球气候变化和生命演化产生了深远的影响。为了更好地约束特提斯喜马拉雅白垩纪的古地理位置和新特提斯洋的演化，对来自 Gyabula 组的样品进行了古地磁和碎屑锆石 U Pb 地质年代学研究，约束在 ca。117.7-94.4 Ma，特提斯喜马拉雅北部中巴地区。正折叠和反转测试与 106% 展开的最大分组相结合，表明高温分量方向是在折叠之前获得的，并且很可能是主要来源。倾斜校正的方向在 29.2°N、280.5°E 和 A _{95处产生了一个古极点} = 5.1°，采样区域对应的古纬度为 -29.0° ± 5.1°N（29.7°N，84.0°E）。从取样的燧石中没有发现明显的倾斜变浅。将观测到的古纬度与印度克拉通的预期值进行比较表明，作为参考点（29.7°N，84.0°E），特提斯喜马拉雅北部和印度克拉通之间存在840±670公里的南北距离。由于印度克拉通的逆时针旋转，这相当于大约 1130 ± 900 公里的地壳范围。106 Ma，代表地壳南北缩短量。我们的新结果以及从特提斯喜马拉雅获得的可靠的白垩纪古地磁数据表明，在特提斯喜马拉雅和印度克拉通之间没有大洋盆地延伸。