Boleh ke Japri pak Awang, biar baca ceritanya lebih asyik. egs
-----Original Message----- From: Awang Harun Satyana [mailto:[EMAIL PROTECTED] Sent: Thursday, 01 November, 2007 2:17 PM To: iagi-net@iagi.or.id Subject: RE: [iagi-net-l] Mendaki Bukit Pasir (Dune) Tertinggi di Eropa Iya itu betul bagian dari Dune Pyla (Pylat). Saya sedang meminta akses ke Pak Paulus Allo, administator IAGI-net, untuk dapat melampirkan beberapa foto Dune Pyla di IAGI-net. Atau, nanti saya kirim lewat ja-pri ke beberapa rekan netter yang memerlukannya. Salam, awang -----Original Message----- From: H. Edison Sirodj (XD/PCSB) [mailto:[EMAIL PROTECTED] Sent: Thursday, November 01, 2007 11:20 C++ To: iagi-net@iagi.or.id Subject: RE: [iagi-net-l] Mendaki Bukit Pasir (Dune) Tertinggi di Eropa Kalau dicocokkan dengan ceritanya sih, sepertinya betul. -----Original Message----- From: dwi hendro [mailto:[EMAIL PROTECTED] Sent: Thursday, 01 November, 2007 12:01 PM To: iagi-net@iagi.or.id Subject: Re: [iagi-net-l] Mendaki Bukit Pasir (Dune) Tertinggi di Eropa saya search di google, apakah seperti ini bentuknya : http://www.visoterra.com/images/original/Visoterra-vue-de-la-dune-du-pyl at-6240.jpg On 10/31/07, nyoto - ke-el <[EMAIL PROTECTED]> wrote: > > Iya betul sekali, tapi apa di milis ini bisa attach foto2 ya ...? > > wass, > > nyoto > > > > > On 10/31/07, H. Edison Sirodj (XD/PCSB) <[EMAIL PROTECTED]> > wrote: > > > > > > Kalau ada photonya, akan lebih oke lagi buat di simak.. > > > > edison > > > > -----Original Message----- > > From: Awang Harun Satyana [mailto:[EMAIL PROTECTED] > > Sent: Wednesday, 31 October, 2007 5:03 PM > > To: iagi-net@iagi.or.id; [EMAIL PROTECTED] > > Subject: [iagi-net-l] Mendaki Bukit Pasir (Dune) Tertinggi di Eropa > > > > Dalam suatu kesempatan ekskursi geologi bersama BPMIGAS-Total ke > > Aquitaine Basin, Prancis baratdaya minggu lalu, ada acara naik ke puncak > > bukit pasir La Dune du Pyla untuk mempelajari endapan hasil angin > > (aeolian). Ini adalah dune tertinggi di Eropa meskipun tingginya hanya > > 115 meter (tinggi maksimum dune Parangtritis 15 meter). Saya dan rekan2 > > dari BPMIGAS dan Total yang baru pertama kalinya naik ke puncak dune ini > > dibuat takjub dengan gundukan pasir begitu tinggi, lebar, dan panjang > > ini. Pemandangannya lebih spektakular lagi karena di sisi barat dune > > langsung berbatasan dengan pantai Samudera Atlantik dan di sisi timur > > dune berbatasan dengan kompleks hutan pinus yang rapat. Lalu, langit > > musim gugur di Prancis selalu biru, dan hawanya sejuk sampai dingin 5-15 > > Celsius. > > > > > > > > Untuk mendaki Dune Pyla dibuat tangga dengan ratusan anak tangga, > > tingginya hampir seperti kalau kita mendaki puncak Bromo. Kalau di atas > > puncak Bromo kita langsung dihadapkan ke jendela magma dengan asap > > belerang menguap dari kawahnya; di puncak Dune Pyla kita langsung > > dihadapkan dengan pemandangan biru Samudera Atlantik. > > > > > > > > Dune Pyla adalah coastal dune (untuk membedakannya dengan dune di > > gurun). Dari bentuknya ia merupakan transverse coastal ridges yang > > berposisi sejajar dengan garis pantai dan tegak lurus terhadap arah > > angin utama yang membentuknya. Angin dari Samudera Atlantik yang > > membatasi Prancis di sebelah barat bertiup permanen ke sebelah timur > > selama ribuan tahun menerbangkan butir2 pasir di pantainya dan > > terperangkap oleh suatu morfologi atau semak belukar di sebelah daratan > > dan terbentuklah bukit pasir ini. Seluruh pantai Aquitaine di baratdaya > > Prancis ditempati punggungan-punggungan pantai bukit pasir ini. Kompleks > > dune ini membentuk punggungan pantai sepanjang 200 km, lebar 1-10 km. > > (bandingkan dengan dimensi dunes di pantai selatan Jawa Tengah antara > > Cilacap dan Yogyakarta, setinggi 5-15 meter, lebar 100-500 meter, dan > > panjang maksimum beberapa km). Volume seluruh dune di pantai Aquitaine > > ini 20-30 milyar meter kubik. > > > > > > > > Dune Pyla adalah sebuah dune barchanoid (dune berbentuk bulan sabit bila > > dilihat dari udara) setinggi 115 meter, lebar 500 meter, dan panjang > > 2700 meter. Bila dihitung, volume pasir halus dan terpilah istimewa ini > > kira2 60 juta meter3. Dune ini merupakan dune aktif, artinya masih suka > > bergerak bermigrasi ke arah darat kalau ada angin badai pada musim > > dingin (winter storm). Kecepatan migrasinya 5 meter/tahun. Lumayan > > cepat. Pohon pinus di sebelah darat Dune Pyla sengaja ditanam untuk > > menghentikan migrasi dune di bagian bawah Dune Pyla. Kecuraman lereng > > sisi dalam dune ini (lee side) adalah 30-40 deg. > > > > > > > > Arkitektur bagian dalam Dune Pyla yang kami daki minggu lalu itu sudah > > dipelajari dengan detail menggunakan berbagai metode sehingga bisa > > direkonstruksi evolusi morfologinya dari waktu ke waktu. Metodenya > > berdasarkan pentarikhan karbon-14, pentarikhan ISL (infrared stimulated > > luminescence), data sejarah (arkeologi), dan juga GPR (gorund > > penetrating radar). GPR yang semula dirancang untuk berjalan2 di > > permukaan planet Mars diujikan dulu di bagian selatan La Dune du Pyla > > ini. > > > > > > > > Dune Pyla tersusun oleh tiga generasi dune yang saat ini > > bertumpuk-tumpuk : satu fase parabolic dune (bentuk parabolik lebih > > curam daripada barchanoid dilihat dari atas, seperti garis parabola) dan > > dua fase barchanoid. Setiap fase dipisahkan oleh paleosols. Paleosols > > inilah yang ditera umurnya. > > > > > > > > Bagian bawah dune ini disusun oleh lapisan pasir tipis, datar, dan > > ditutupi oleh paleosol berumur 3600 y BP (year before present) sampai > > 2400 y BP. Lalu di atasnya terdapat dune fase pertama berupa parabolic > > dune setinggi 30 meter di atas muka laut. Dune parabolik ini diendapkan > > di atas paleosol berumur 2400 tahun yang lalu dan ditutupi oleh paleosol > > berumur 400 tahun yang lalu. Bagian parabolic dunes ini telah bermigrasi > > ke arah darat sepanjang pantai Aquitaine dari 1300 - 900 tahun yang > > lalu. Generasi/fase kedua dune ini adalah dune barchanoid yang dinamakan > > Dune de la Grave, menutupi dune parabolic dan mencapai ketinggian 60 > > meter di atas permukaan laut. Dune ini diendapkan langsung di atas > > paleosol berumur 400 tahun, dan ditutupi paleosol berumur 200 tahun yang > > lalu. Dune ini bermigrasi ke arah darat dari 550-250 tahun yang lalu. > > Dune Pyla yang kami daki itu baru terbentuk pada pertengahan abad ke-19, > > menambah ketinggiannya sampai 115 meter dan membuatnya sebagai dune > > paling tinggi di Eropa. > > > > > > > > Kalau dune ditumbuhi vegetasi, maka ia akan berhenti bermigrasi. Itu > > pula yang dilakukan orang pada pertengahan abad ke-19 di dasar Dune > > Pyla. Kini hutan pinus di sebelah timur dune ini terhampar luas membuat > > pemandangan yang menakjubkan. Pola migrasi dune akan ke arah darat > > sehingga dune paling tua akan di sisi darat dan dune paling muda akan di > > sisi laut. > > > > > > > > Setelah kami mempelajari Dune Pyla, kami turun kembali (tentu saja, masa > > mau di atas terus). Tetapi, kami tak turun melalui tangga tadi, tetapi > > berlari ngebut di tumpukan pasirnya ditarik gravitasi lereng yang cukup > > curam dengan kedua kaki masuk ke dalam pasir. Mengasyikan, seperti > > bagian permainan fear factor, memompa adrenalin. Di bawah dune kami lalu > > membuka sepatu membuang semua pasir yang terperangkap sepatu yang > > tenggelam di pasir. > > > > > > > > Begitulah La Dune de Pyla, suatu tempat yang pantas dikunjungi bila > > berkesempatan ke Prancis atau Spanyol. > > > > > > > > Apa kabar dengan Dune di Parangtritis ? Dulu dune ini pernah dipakai > > lokasi syuting film nasional dan kini dijadikan areal delman pantai. > > Tinggi dune Parangtritis dan dune lain di pantai selatan Jawa Tengah ini > > rata-rata tak sampai 10 meter. Ada beberapa punggungan pasir yang > > berkembang sejajar dengan garis pantai, ini tranversal ridge dunes juga > > hasil tiupan pasir oleh Samudera Hindia. Adakah yang pernah mempelajari > > dengan detail dunes ini, misalnya sejarah migrasinya dan arkitektur > > internal morfologinya ? Setahu saya, inilah dune terluas di Indonesia. > > Jangan disia-siakan dengan tidak mempelajarinya. > > > > > > > > salam, > > > > awang > > > > > > > > > > > > > > > > > > > > > > > > > > > > DISCLAIMER : This e-mail and any files transmitted with it ("Message") > is > > intended only for the use of the recipient(s) named above and may > contain > > confidential information. You are hereby notified that the taking of > any > > action in reliance upon, or any review, retransmission, dissemination, > > distribution, printing or copying of this Message or any part thereof by > > anyone other than the intended recipient(s) is strictly prohibited. If > you > > have received this Message in error, you should delete this Message > > immediately and advise the sender by return e-mail. Opinions, > conclusions > > and other information in this Message that do not relate to the official > > business of PETRONAS or its Group of Companies shall be understood as > > neither given nor endorsed by PETRONAS or any of the companies within > the > > Group. > > > > DISCLAIMER : This e-mail and any files transmitted with it ("Message") > is > > intended only for the use of the recipient(s) named above and may > contain > > confidential information. You are hereby notified that the taking of > any > > action in reliance upon, or any review, retransmission, dissemination, > > distribution, printing or copying of this Message or any part thereof by > > anyone other than the intended recipient(s) is strictly prohibited. If > you > > have received this Message in error, you should delete this Message > > immediately and advise the sender by return e-mail. Opinions, > conclusions > > and other information in this Message that do not relate to the official > > business of PETRONAS or its Group of Companies shall be understood as > > neither given nor endorsed by PETRONAS or any of the companies within > the > > Group. > > > > > > > ------------------------------------------------------------------------ ---- > > JOINT CONVENTION BALI 2007 > > The 32nd HAGI, the 36th IAGI, and the 29th IATMI Annual Convention and > > Exhibition, > > Bali Convention Center, 13-16 November 2007 > > > > > ------------------------------------------------------------------------ ---- > > To unsubscribe, send email to: iagi-net-unsubscribe[at]iagi.or.id > > To subscribe, send email to: iagi-net-subscribe[at]iagi.or.id > > Visit IAGI Website: http://iagi.or.id > > Pembayaran iuran anggota ditujukan ke: > > Bank Mandiri Cab. Wisma Alia Jakarta > > No. Rek: 123 0085005314 > > Atas nama: Ikatan Ahli Geologi Indonesia (IAGI) > > Bank BCA KCP. Manara Mulia > > No. Rekening: 255-1088580 > > A/n: Shinta Damayanti > > IAGI-net Archive 1: http://www.mail-archive.com/iagi-net%40iagi.or.id/ > > IAGI-net Archive 2: http://groups.yahoo.com/group/iagi > > --------------------------------------------------------------------- > > DISCLAIMER: IAGI disclaims all warranties with regard to information > > posted on its mailing lists, whether posted by IAGI or others. In no > event > > shall IAGI be liable for any, including but not limited to direct or > > indirect damages, or damages of any kind whatsoever, resulting from loss > of > > use, data or profits, arising out of or in connection with the use of > any > > information posted on IAGI mailing list. > > --------------------------------------------------------------------- > > > > > DISCLAIMER : This e-mail and any files transmitted with it ("Message") is intended only for the use of the recipient(s) named above and may contain confidential information. You are hereby notified that the taking of any action in reliance upon, or any review, retransmission, dissemination, distribution, printing or copying of this Message or any part thereof by anyone other than the intended recipient(s) is strictly prohibited. If you have received this Message in error, you should delete this Message immediately and advise the sender by return e-mail. Opinions, conclusions and other information in this Message that do not relate to the official business of PETRONAS or its Group of Companies shall be understood as neither given nor endorsed by PETRONAS or any of the companies within the Group. DISCLAIMER : This e-mail and any files transmitted with it ("Message") is intended only for the use of the recipient(s) named above and may contain confidential information. You are hereby notified that the taking of any action in reliance upon, or any review, retransmission, dissemination, distribution, printing or copying of this Message or any part thereof by anyone other than the intended recipient(s) is strictly prohibited. If you have received this Message in error, you should delete this Message immediately and advise the sender by return e-mail. Opinions, conclusions and other information in this Message that do not relate to the official business of PETRONAS or its Group of Companies shall be understood as neither given nor endorsed by PETRONAS or any of the companies within the Group. ------------------------------------------------------------------------ ---- JOINT CONVENTION BALI 2007 The 32nd HAGI, the 36th IAGI, and the 29th IATMI Annual Convention and Exhibition, Bali Convention Center, 13-16 November 2007 ------------------------------------------------------------------------ ---- To unsubscribe, send email to: iagi-net-unsubscribe[at]iagi.or.id To subscribe, send email to: iagi-net-subscribe[at]iagi.or.id Visit IAGI Website: http://iagi.or.id Pembayaran iuran anggota ditujukan ke: Bank Mandiri Cab. Wisma Alia Jakarta No. Rek: 123 0085005314 Atas nama: Ikatan Ahli Geologi Indonesia (IAGI) Bank BCA KCP. Manara Mulia No. Rekening: 255-1088580 A/n: Shinta Damayanti IAGI-net Archive 1: http://www.mail-archive.com/iagi-net%40iagi.or.id/ IAGI-net Archive 2: http://groups.yahoo.com/group/iagi --------------------------------------------------------------------- DISCLAIMER: IAGI disclaims all warranties with regard to information posted on its mailing lists, whether posted by IAGI or others. In no event shall IAGI be liable for any, including but not limited to direct or indirect damages, or damages of any kind whatsoever, resulting from loss of use, data or profits, arising out of or in connection with the use of any information posted on IAGI mailing list. --------------------------------------------------------------------- ------------------------------------------------------------------------ ---- JOINT CONVENTION BALI 2007 The 32nd HAGI, the 36th IAGI, and the 29th IATMI Annual Convention and Exhibition, Bali Convention Center, 13-16 November 2007 ------------------------------------------------------------------------ ---- To unsubscribe, send email to: iagi-net-unsubscribe[at]iagi.or.id To subscribe, send email to: iagi-net-subscribe[at]iagi.or.id Visit IAGI Website: http://iagi.or.id Pembayaran iuran anggota ditujukan ke: Bank Mandiri Cab. Wisma Alia Jakarta No. Rek: 123 0085005314 Atas nama: Ikatan Ahli Geologi Indonesia (IAGI) Bank BCA KCP. Manara Mulia No. Rekening: 255-1088580 A/n: Shinta Damayanti IAGI-net Archive 1: http://www.mail-archive.com/iagi-net%40iagi.or.id/ IAGI-net Archive 2: http://groups.yahoo.com/group/iagi --------------------------------------------------------------------- DISCLAIMER: IAGI disclaims all warranties with regard to information posted on its mailing lists, whether posted by IAGI or others. In no event shall IAGI be liable for any, including but not limited to direct or indirect damages, or damages of any kind whatsoever, resulting from loss of use, data or profits, arising out of or in connection with the use of any information posted on IAGI mailing list. --------------------------------------------------------------------- DISCLAIMER : This e-mail and any files transmitted with it ("Message") is intended only for the use of the recipient(s) named above and may contain confidential information. You are hereby notified that the taking of any action in reliance upon, or any review, retransmission, dissemination, distribution, printing or copying of this Message or any part thereof by anyone other than the intended recipient(s) is strictly prohibited. If you have received this Message in error, you should delete this Message immediately and advise the sender by return e-mail. Opinions, conclusions and other information in this Message that do not relate to the official business of PETRONAS or its Group of Companies shall be understood as neither given nor endorsed by PETRONAS or any of the companies within the Group. DISCLAIMER : This e-mail and any files transmitted with it ("Message") is intended only for the use of the recipient(s) named above and may contain confidential information. You are hereby notified that the taking of any action in reliance upon, or any review, retransmission, dissemination, distribution, printing or copying of this Message or any part thereof by anyone other than the intended recipient(s) is strictly prohibited. If you have received this Message in error, you should delete this Message immediately and advise the sender by return e-mail. Opinions, conclusions and other information in this Message that do not relate to the official business of PETRONAS or its Group of Companies shall be understood as neither given nor endorsed by PETRONAS or any of the companies within the Group. ---------------------------------------------------------------------------- JOINT CONVENTION BALI 2007 The 32nd HAGI, the 36th IAGI, and the 29th IATMI Annual Convention and Exhibition, Bali Convention Center, 13-16 November 2007 ---------------------------------------------------------------------------- To unsubscribe, send email to: iagi-net-unsubscribe[at]iagi.or.id To subscribe, send email to: iagi-net-subscribe[at]iagi.or.id Visit IAGI Website: http://iagi.or.id Pembayaran iuran anggota ditujukan ke: Bank Mandiri Cab. Wisma Alia Jakarta No. Rek: 123 0085005314 Atas nama: Ikatan Ahli Geologi Indonesia (IAGI) Bank BCA KCP. Manara Mulia No. Rekening: 255-1088580 A/n: Shinta Damayanti IAGI-net Archive 1: http://www.mail-archive.com/iagi-net%40iagi.or.id/ IAGI-net Archive 2: http://groups.yahoo.com/group/iagi --------------------------------------------------------------------- DISCLAIMER: IAGI disclaims all warranties with regard to information posted on its mailing lists, whether posted by IAGI or others. In no event shall IAGI be liable for any, including but not limited to direct or indirect damages, or damages of any kind whatsoever, resulting from loss of use, data or profits, arising out of or in connection with the use of any information posted on IAGI mailing list. ---------------------------------------------------------------------