خرائط مرجعية للصفائح التكتونية - كتاب علوم الأرض و الفضاء - الصف 12 - الفصل 1 - المملكة العربية السعودية

خرائط مرجعية --- SECTION: Diagram Label --- حدود جانبية --- SECTION: Plate Name --- صفيحة أمريكا الشمالية --- SECTION: Plate Name --- صفيحة خوان دي فوكا --- SECTION: Plate Name --- صفيحة الكاريبي --- SECTION: Plate Name --- صفيحة كوكوس --- SECTION: Geological Feature --- ظهر المحيط الأطلسي --- SECTION: Sidebar Title --- خرائط مرجعية --- SECTION: Legend Item --- الحدود الجانبية --- SECTION: Legend Item --- الحدود المتباعدة --- SECTION: Legend Item --- الحدود المتقاربة --- SECTION: Plate Name --- صفيحة نازكا --- SECTION: Geological Feature --- ظهر المحيط الهادي الشرقي --- SECTION: Plate Name --- صفيحة أمريكا الجنوبية --- SECTION: Plate Name --- صفيحة المحيط الهادي --- SECTION: Diagram Label --- حدود متقاربة - حدود طرح (محيطية - قارية) --- SECTION: Diagram Label --- حدود متباعدة --- SECTION: Publisher Info --- وزارة التعليم --- SECTION: Publisher Info --- Ministry of Education --- SECTION: Year Info --- 2025 - 1447 --- SECTION: Page Number --- 441 --- VISUAL CONTEXT --- **MAP**: خريطة الصفائح التكتونية Description: A large geological map illustrating the major tectonic plates and their boundaries, primarily focusing on the Americas and surrounding oceanic regions. Different colored arrows indicate the type and direction of plate movement. The map shows continental and oceanic crusts with varying topography. X-axis: EMPTY Y-axis: EMPTY Data: The map displays several major and minor tectonic plates including the North American Plate, Caribbean Plate, Cocos Plate, Nazca Plate, South American Plate, Pacific Plate, and Juan de Fuca Plate. Mid-oceanic ridges like the Mid-Atlantic Ridge and East Pacific Rise are also labeled. Plate boundaries are indicated by a legend: yellow double arrows for transform boundaries (الحدود الجانبية), red opposing arrows for divergent boundaries (الحدود المتباعدة), and blue converging arrows for convergent boundaries (الحدود المتقاربة). Key Values: صفيحة أمريكا الشمالية, صفيحة الكاريبي, صفيحة كوكوس, صفيحة نازكا, صفيحة أمريكا الجنوبية, صفيحة المحيط الهادي, صفيحة خوان دي فوكا, ظهر المحيط الأطلسي, ظهر المحيط الهادي الشرقي, الحدود الجانبية, الحدود المتباعدة, الحدود المتقاربة Context: This map serves as a reference for understanding the global distribution of tectonic plates and the types of interactions occurring at their boundaries, which are fundamental concepts in geology and earth science. **DIAGRAM**: حدود جانبية Description: A 3D cross-section diagram illustrating a transform plate boundary. Two crustal blocks are shown sliding horizontally past each other, indicated by yellow arrows. The diagram depicts the layered structure of the Earth's crust. X-axis: EMPTY Y-axis: EMPTY Data: The diagram shows two adjacent blocks of crust with a fault line between them. Yellow arrows on the surface indicate that the blocks are moving in opposite directions, parallel to the boundary. Key Values: Transform boundary, Horizontal movement Context: This diagram visually explains the mechanics of a transform plate boundary, where plates slide past each other without significant creation or destruction of crust. **DIAGRAM**: حدود متقاربة - حدود طرح (محيطية - قارية) Description: A 3D cross-section diagram illustrating an oceanic-continental convergent plate boundary with subduction. An oceanic plate is shown diving beneath a continental plate, leading to the formation of a volcanic arc on the continental crust. Blue arrows indicate the convergent motion. X-axis: EMPTY Y-axis: EMPTY Data: The diagram shows a denser oceanic plate bending and descending into the mantle beneath a lighter continental plate. Magma generated from the subducting plate rises to form volcanoes on the overriding continental plate. Blue arrows show the plates moving towards each other. Key Values: Convergent boundary, Subduction, Oceanic-continental, Volcanic arc Context: This diagram illustrates the process of subduction at a convergent boundary, a key mechanism for crustal recycling and the formation of mountain ranges and volcanic activity. **DIAGRAM**: حدود متباعدة Description: A 3D cross-section diagram illustrating a divergent plate boundary. Two plates are shown moving away from each other, with magma rising from the mantle to create new crustal material. Red arrows indicate the divergent motion. X-axis: EMPTY Y-axis: EMPTY Data: The diagram depicts two plates pulling apart, creating a rift. Molten material (magma) from the asthenosphere rises to fill the gap, solidifying to form new oceanic crust. Red arrows show the plates moving away from each other. Key Values: Divergent boundary, Seafloor spreading, Mid-ocean ridge Context: This diagram explains the process of seafloor spreading at a divergent boundary, where new crust is continuously generated, contributing to the expansion of ocean basins.