Gotland is an island in the central part of the Baltic Sea, with up to 800 m Palaeozoic sedimentary rocks on top of a Precambrian basement belonging to the East European Craton. In this contribution, two major ductile deformation zones (Lickershamn - Östergarn and Lilla Karlsö-Ronehamn) are recognized and connected with the Vingåker-Nyköping and Linköping-Loftahammar Deformation Zones in the adjacent Fennoscandian Shield. These deformation zones constitute the borders between three main Precambrian segments that are correlated with crustal units within the Fennoscandian Shield and concealed parts of the East European Craton east of the Baltic Sea.

The Fårö-Northern Gotland segment is dominated by continental Jotnian sandstones and Svecofennian metasedimentary rocks, separated from each other by a fault and an associated dolerite dyke. The metasediments show a specific provenance pattern with 3.29 Ga, 2.95–2.63 Ga and 2.11–1.96 Ga sources, devoid of < 1.90 Ga detrital zircons. The Alby granite truncates the metasedimentary rocks of the Fårö-Northern Gotland segment and is part of the 1.58 Ga Riga rapakivi batholith. The Central Gotland segment is dominated by metabasalts and 1.90–1.88 Ga granitoids and is correlated with the Tiveden and Valdemarsvik areas in the Fennoscandian Shield. The amphibolites in the Southern Gotland segment are correlated with 1.87–1.86 Ga metabasalts, intercalated with the Västervik quartzites in the Fennoscandian Shield. They were intruded by TIB 0 granitoids, recognized at Frigsarve and correlated with the Askersund-Loftahammar granitoids in the Fennoscandian Shield. The TIB 0 granitoids on Gotland can also be followed to the east, first to the E6-1 offshore drill hole, 30 km west of the Latvian coast and further east into southwestern Latvia and western Lithuania as a major component in the Mid-Lithuanian Domain. The Kvarne granitoid on southernmost Gotland is correlated with the TIB 1a generation in the Fennoscandian Shield and with granitoids within the Mid-Lithuanian Domain.

1.48 Ga small stitching plutons on southern Gotland penetrate the TIB 0 and 1a granitoids and are correlated with the Götemar and Karlshamn plutons in the Fennoscandian Shield and several plutons in western and southern Lithuania.

哥特兰岛是波罗的海中部的一个岛屿，在属于东欧克拉通的前寒武纪基底顶部有高达 800 米的古生代沉积岩。在这一贡献中，识别出两个主要的延性变形区（Lickershamn - Östergarn 和 Lilla Karlsö-Ronehamn）并与相邻 Fennoscandian 地盾中的 Vingåker-Nyköping 和 Linköping-Loftahammar 变形区相连。这些变形带构成了三个主要的前寒武纪段之间的边界，这些段与芬诺斯坎迪亚地盾内的地壳单元和波罗的海以东的东欧克拉通的隐蔽部分相关。

Fårö-Northern Gotland 段以大陆 Jotnian 砂岩和 Svecofennian 变质沉积岩为主，由断层和相关的辉绿岩岩脉相互隔开。变质沉积物显示出具有 3.29 Ga、2.95-2.63 Ga 和 2.11-1.96 Ga 源的特定物源模式，不含 < 1.90 Ga 碎屑锆石。Alby 花岗岩截断了 Fårö-Northern Gotland 段的变质沉积岩，是 1.58 Ga Riga rapakivi 基岩的一部分。哥特兰中部段以变玄武岩和 1.90-1.88 Ga 花岗岩为主，并与 Fennoscandian 地盾中的 Tiveden 和 Valdemarsvik 地区相关。南哥特兰岛段的角闪岩与 1.87-1.86 Ga 变玄武岩相关，夹有 Fennoscandian 地盾中的 Västervik 石英岩。他们被TIB 0花岗岩侵入，在 Frigsarve 发现并与 Fennoscandian 地盾中的 Askersund-Loftahammar 花岗岩相关。哥特兰岛的 TIB 0 花岗岩也可以向东延伸，首先到达拉脱维亚海岸以西 30 公里处的 E6-1 海上钻孔，再向东进入拉脱维亚西南部和立陶宛西部，作为中立陶宛域的主要组成部分. 哥特兰岛最南端的 Kvarne 花岗岩与 Fennoscandian 地盾中的 TIB 1a 代以及中立陶宛域内的花岗岩相关。位于拉脱维亚海岸以西 30 公里处，进一步向东进入拉脱维亚西南部和立陶宛西部，是中立陶宛域的主要组成部分。哥特兰岛最南端的 Kvarne 花岗岩与 Fennoscandian 地盾中的 TIB 1a 代以及中立陶宛域内的花岗岩相关。位于拉脱维亚海岸以西 30 公里处，进一步向东进入拉脱维亚西南部和立陶宛西部，是中立陶宛域的主要组成部分。哥特兰岛最南端的 Kvarne 花岗岩与 Fennoscandian 地盾中的 TIB 1a 代以及中立陶宛域内的花岗岩相关。

哥特兰岛南部的 1.48 Ga 小拼接岩体穿透 TIB 0 和 1a 花岗岩，并与 Fennoscandian 地盾中的 Götemar 和 Karlshamn 岩体以及立陶宛西部和南部的几个岩体相关联。