Detailed field, litho-, bio-, sequence stratigraphy, and paleoenvironmental studies area carried out on the Aqabaat section, Farafra Oasis, Western Desert, Egypt. Lithostratigraphically, the Khoman Formation is here differentiated for the first time into three new distinctive members, which are easily detected at the field: the White Desert (at base), the Gunna (at middle), and the Aqabaat (at top). Biostratigraphically, six planktonic foraminiferal zones and subzones are here identified ranging in age from Maastrichtian to Ypresian. The foraminiferal indices, as well as the benthonic foraminiferal biofacies, indicated an outer neritic paleoenvironmental condition of the Maastrichtian rocks interrupted with shallowing of the relative sea-level at some intervals, especially at the upper parts. These shallowing settings are due to the impact of three syn-sedimentary tectonic events (I, II, and III), which are related to the Syrian Arc orogeny. The Tectonic Event I had a regional impact and led to form a positive structure in the sedimentary basin at the Cretaceous/Paleogene (K/Pg) boundary. The Tectonic Event II and III synchronized with the Danian/Selandian (D/S) and Paleocene/Eocene (P/E) boundaries, respectively. Four depositional sequences (SQ1–SQ4) are defined separated by four sequence boundaries (SB1–SB4) covering the Maastrichtian–Eocene sequence.

在埃及西部沙漠的Farafra绿洲Aqabaat地区进行了详细的野外，岩石，生物，层序地层学和古环境研究领域。在岩石地层学上，这里的霍曼组首次被划分为三个新的独特成员，在现场很容易发现：白沙漠（底部），古纳（中部）和亚喀巴特（顶部）。在生物地层学上，这里确定了六个浮游有孔虫区和亚区，其年龄范围从马斯特里赫特到伊普尔人。有孔虫指数以及底栖有孔虫生物相表明，马斯特里赫特岩层处于外部胶状古环境，并在一定时间间隔（尤其是在上部）被相对海平面变浅打断。这些浅层设置是由于与叙利亚弧造山带有关的三个同沉积期构造事件（I，II和III）的影响。构造事件I具有区域性影响，并导致在白垩纪/古近纪（K / Pg）边界的沉积盆地中形成了正构造。构造事件II和III分别与达尼安/塞拉第安（D / S）和古新世/始新世（P / E）边界同步。四个沉积层序（SQ1-SQ4）由覆盖马斯特里赫特-始新世层序的四个层序边界（SB1-SB4）分开定义。构造事件II和III分别与达尼安/塞拉第安（D / S）和古新世/始新世（P / E）边界同步。四个沉积层序（SQ1-SQ4）由覆盖马斯特里赫特-始新世层序的四个层序边界（SB1-SB4）分开定义。构造事件II和III分别与达尼安/塞拉第安（D / S）和古新世/始新世（P / E）边界同步。四个沉积层序（SQ1-SQ4）由覆盖马斯特里赫特-始新世层序的四个层序边界（SB1-SB4）分开定义。