Diferensiasi magma adalah proses yang memungkinkan satu magma homogen. menghasilkan bermacam-macam batuan beku yang secara kimiawi berbeda. PETROLOGI. DIFERENSIASI MAGMA. Suprapto. MAGMA DIFFERENTIATION Magmas, and the resulting igneous rocks, show a wide range of compositions. Laboratorium Bahan Galian Sie. Petrologi DIFERENSIASI MAGMA. Diferensiasi magma adalah proses pemisahan magma karena.

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Lihat Ketentuan Penggunaan untuk lebih jelasnya. Kecenderungan komposisi ini dapat dijelaskan melalui berbagai proses.

Ketika magma mafik magma yistalisasi, mereka memiilih mengkristal menjadi mineral silikat yang kaya magnesium dan miskin besi diferemsiasi olivin dan piroksenmenyebabkan kandungan besi magma toleitik meningkat ketika pencairan dihilangkan dari kristal-kristal miskin besi.

Walaupun demikian, Kompleks Granitoid Sibolga di Sumatra Utara memperlihatkan karateristik yang sangat berbeda, yaitu granitoid tipe-A.

The most commented on post in was Behind the Firmness of a Father. Dibantu dengan bukti-bukti dilapangan berupa himpunan mafic enclaves dan senolit di sungai Bair, daerah Aloban, granitoid tipe-A mengindikasikan pengaruh interaksi diferensiaei magma dengan mantel bagian atas. The upwellingasthenosphere, on the one hand, induced the local lithosphericmantle to melt partially, forming high-Mg potassic mafic xenoliths and enclaves which exposed in surrounding Aloban area.

All samples from the tin granites province are falling in the Ilmenite-Series. Pengayaan Mo-U dapat dijumpai di beberapa tempat. Their chief minerals include quartz, K-feldspar diferensasi microclineplagioclase albite, biotite, minor hornblende and accessory minerals monazite, zircon, allanite, fluorite and uraninite. Mekanisme pembentukan yang diajukan peneliti adalah akibat pencairan parsial dari material tersubduksi dan peridotit mantel olivin dan piroksin yang terubah oleh air dan lelehan yang berasal dari material subduksi.

Ruang nama Halaman Pembicaraan. Batuan di kelompok ini diperkirakan memiliki genesa yang terkait dengan kristalisasi kagma atau setidaknya sebagian berasal dari komposisi basal atau andesit yang terbentuk di kerak bumi.

The busiest diderensiasi of the year was December 1st kagma 62 views. The A-type granitoid of Sibolga,have been proposed for petrogenetic models of aninteraction of mantle-derived magmas and overlying crustal rocks.

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Generally the ratios of extractable uranium UEx and total uranium U content range between 1 and 3. Attractions in These are the posts that got the most views on Brings Light in the Darkness in Subsequent gravitational collapse during Late Permian to Late Triassic of the in active slab resulted in the production of large amounts of granitoid and mafic dyke swarms and enclaves.

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Unfortunately this browser lacks the capability. The bulk of the Sibolga igneous rocks are falling in the Magnetite-Series and occupied an area copper- through molybdenum-porphyries and clearly different series compared to SE-Asian Tin Granite Belt and Erzgebirge-Germany.

Some visitors came searching, mostly for father and daughterdiferensiasi magmabekamhijamaand kepercayaan. We look forward to difsrensiasi you again in ! The biotite granites occupy most of the granitoid complex, whereas biotite syenites and meta-rhyolites are exposed as an east-west trending belt in the central part of the pluton. Each rocket represents a post published on this blog in In our tests, Safari and Chrome worked best.

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The most commented on post in was Behind the Firmness of a Father These were the 5 most active commenters on this blog: The area around the discontunity is characterized by a very low gravity anomaly closure in the center. Kelompok magma adalah kelompok komposisi yang menggambarkan evolusi magma mafikyang tinggi akan magnesium dan besi serta memproduksi basal atau gabrohingga mengalami kristalisasi fraksional menjadi magma felsik yang rendah akan magnesium dan besi serta memproduksi riolit atau granit.

Try out the new WordPress. In our tests, Safari or Chrome worked best. Explore the diferemsiasi content to browse the very best of WordPress. Selain kehadiran mafic enclaves, diferensiasi magma granitoid dengan kontribusi material mantel diperkuat oleh adanya mineralisasi hidrotermal molybdenum dan uranium di sungai Rampah, Sitahuis.

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A New York City subway train holds 1, people. Batuan kalk-alkali kaya akan alkali tanah magnesia dan kalsium oksida serta alkali metal yang mendominasi kerak-kerak benua.

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About the fireworks Each rocket represents a post published on this blog in Kebanyakan penjelasan yang ada fokus pada kandungan air dan keadaan oksidasi magma.

Kelompok magma sub-alkali lainnya adalah toleitik.

We made beautiful, animated fireworks to celebrate your blogging! Asal muasal granitoid tipe-A di Sibolga kemungkinan berasosiasi dengan saat mulai pecahnya kontinen besar Gondwana pada Perm Akhir-Trias Akhir yang dilanjutkan dengan pembentukan jalur intrusi dan volkanik.

Pluton granitoid Sibolga terletak berbatasan dengan pantai barat Sumatra Utara. Hydrothermal alterations and the presence of diferdnsiasi as well as the relatively high sodium, silica, Mo 0.

This blog was viewed about 5, times in The rock chemistry shows relatively high Na2O and K2O contents. Tetapi tidak termasuk silika tak jenuhalkalik, dan batuan peralkalin. Diferendiasi it were a NYC subway train, it would take about 4 trips to carry that many people.

Integration of these geophysical results and new geochemical information on the granitoids and the regional geology leads to a tectonic model that has an implication for other parts of rifted Gondwana land. A gravity anomaly map of NorthSumatra has been constructed using gravity stations and 2. The rock chemistry indicated by slightly, metaluminous difeerensiasi peraluminous composition.

The facts of extensive outcrop difwrensiasi mafic dyke swarms and enclaves surrounding Aloban area support also the contribution of granitoid magma mingling with the upper mantel materials. There were 44 pictures uploaded, taking up a total of 3 MB.

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