sepakat sekali Fer, influx sediment memang mulai sejak early/lower
miocene, dan mencapai puncaknya di middle miocene, jadi upliftnya
harusnya lebih tua dari early miocene dan bukan upper miocene ya?
On 2/21/07, Ferry Bastaman Hakim <[EMAIL PROTECTED]> wrote:
Mas Iwan,
Sebenarnya ada beberapa paper yang menyebutkan pengangkatan Central
Range Borneo atau yg biasa kita kenal sbg Kucing High itu sejak Late
Oligocene, tetapi memang kebanyakan merujuk pada periode Early Miocene
karena memang baru pada Early Miocene, Kucing High mulai efektif menjadi
provenance sedimen di sirkum Borneo, termasuk Mahakam Delta.
Tetapi sebenarnya sebelum Kucing high terangkat-pun, Borneo sudah punya
Meratus High di selatan dan Mangkalihat Ridge di utara yg bisa jadi
sediment source-nya Kutei. Artinya gak menutup kemungkinan bahwa ada
deltaic sediment yang lebih tua dari Early Miocene.
Semoga bermanfaat,
Ferry
-----Original Message-----
From: Iwan B [mailto:[EMAIL PROTECTED]
Sent: Wednesday, February 21, 2007 2:37 PM
To: iagi-net@iagi.or.id
Subject: Re: [iagi-net-l] Delta East Kalimantan
Kok agak bingung ya, kalau delta Mahakam baru terbentuk setelah uplift
Upper miocene.....sebenarnya delta mahalakam yang mana ya??? setahu
saya delta mahakam (terutama yang lower kutei) sudah ada sejak early
miocene, dan upliftnya sendiri bukannya lebih tua dari upper miocene
(Kucing High ??)
On 2/21/07, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote:
> Maaf ralat,...setuju,... pada Mid Miocene sepanjang pengetahuan saya
ada
> tiga delta yang aktif Sepinggan, Mahakam dan Sangata, pada uplift
Upper
> Miocene point source ke Mahakam.
>
>
>
> Herry Maulana
> <[EMAIL PROTECTED]
> oo.com>
To
> iagi-net@iagi.or.id
> 02/21/2007 01:04
cc
> PM
>
Subject
> Re: [iagi-net-l] Delta East
> Please respond to Kalimantan
> <[EMAIL PROTECTED]
> .id>
>
>
>
>
>
>
>
>
> Sepinggan Delta masih lebih tua (Mid Miocene) dari Mahakam delta,
ekivalen
> dengan paleo-delta nya Mbak Parvita (Sangatta, Tarakan).
>
> cmiiw, uplift Upper Miocene menyebabkan semua point source beralih ke
> Mahakam Delta sampai saat ini, sehingga kecil kemungkinan ada delta
lain
> yang ekivalen dengan Mahakam Delta. Yang persis seumur dan mirip
> kejadiannya mungkin ada di NW Borneo, dimana paleo-delta (lebih tua
dari
> Mid-Upper Miocene) berada di NW Borneo sedikit lebih utara dibanding
Baram
> Delta (misal: Erb, Champion Delta) kemudian point source nya berubah
karena
> pengangkatan Upper Miocene sehingga terkonsentrasi di Baram Delta
sampai
> saat ini.
>
> Regards,
> Herry
>
> ----- Original Message ----
> From: "[EMAIL PROTECTED]" <[EMAIL PROTECTED]>
> To: iagi-net@iagi.or.id
> Sent: Wednesday, 21 February, 2007 12:09:49 PM
> Subject: Re: [iagi-net-l] Delta East Kalimantan
>
>
> Sepinggan delta yang sekarang jadi estuari Balikpapan.
>
>
>
>
> "Parvita Siregar"
> <parvita.siregar@
> salamander-energy
To
> .com> <iagi-net@iagi.or.id>
>
cc
> 02/21/2007 11:26
> AM
Subject
> [iagi-net-l] Delta East
Kalimantan
>
> Please respond to
> <[EMAIL PROTECTED]
> .id>
>
>
>
>
>
>
> Rekan-rekan sekalian,
>
>
>
> Sejauh ini, delta yang paling populer di East Kalimantan adalah
Mahakam
> Delta system. Selain itu, ada juga delta2 yang ukurannya lebih kecil
> seperti Sangatta dan Tarakan (paleo-delta). Pertanyaan saya, apakah
ada
> lagi delta system lain di sepanjang East Kalimantan yang diakibatkan
> oleh uplift Upper Miocene di Kalimantan? Mustinya dengan uplift yang
> sebesar itu, terjadi juga delta2 lain yang cukup signifikan di East
Kal.
>
>
>
>
> Parvita H. Siregar
>
>
>
>
>
>
>
>
>
> Disclaimer: This email (including any attachments to it) is
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Hot News!!!
CALL FOR PAPERS: send your abstract by 30 March 2007 to [EMAIL PROTECTED]
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Pembayaran iuran anggota ditujukan ke:
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Hot News!!!
CALL FOR PAPERS: send your abstract by 30 March 2007 to [EMAIL PROTECTED]
Joint Convention Bali 2007 - The 32nd HAGI & the 36th IAGI Annual Convention and Exhibition,
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